Personal Data Server

FSharp.ATProto.Pds provides a turnkey Personal Data Server (PDS) that can be launched with a single function call. It handles account creation, session authentication, repository record storage, and identity resolution out of the box -- all with in-memory storage, suitable for development, testing, and prototyping.

Quick Start

The simplest possible PDS:

// One-liner: starts a PDS on port 3000 (blocking)
Pds.run "localhost" 3000

For more control, use the builder pipeline:

open FSharp.ATProto.Pds

let app =
    Pds.create "my-pds.example.com"
    |> Pds.withPort 3000
    |> Pds.configure

app.Run()

Creating Users with `Pds.createUser`

Pds.start returns a RunningPds that you can interact with programmatically. The star of the show is Pds.createUser -- it creates an account on the PDS and returns a ready-to-use AtpAgent, exactly like Bluesky.login:

task {
    // Start the PDS (non-blocking)
    let! pds = Pds.create "localhost" |> Pds.withPort 3000 |> Pds.start

    // One call: account is created and agent is authenticated
    match! Pds.createUser pds "alice.localhost" "password123" with
    | Ok agent ->
        // Use the agent exactly like a Bluesky bot
        let! _ = Bluesky.post agent "Hello from my own PDS!"
        ()
    | Error e ->
        printfn "Failed: %A" e

    do! Pds.stop pds
}

Pds.createUser handles the full lifecycle: it calls com.atproto.server.createAccount on the PDS, sets up the session on the returned AtpAgent, and gives you back an agent that is ready for any Bluesky operation -- posting, following, liking, everything.

Configuration

Function	Default	Description
`Pds.create hostname`	--	Create a builder with the given hostname
`Pds.withPort port`	`2583`	Set the listening port
`Pds.withSigningKey key`	auto-generated P-256	Use a specific signing key
`Pds.withAdminPassword pw`	`None`	Set the admin password
`Pds.withInviteCode code`	disabled	Require an invite code for account creation
`Pds.withAccessTokenLifetime ts`	2 hours	Set access token expiry
`Pds.withRefreshTokenLifetime ts`	90 days	Set refresh token expiry

Invite Codes

let restrictedApp =
    Pds.create "my-pds.example.com"
    |> Pds.withPort 3000
    |> Pds.withInviteCode "my-secret-invite"
    |> Pds.configure

Custom Signing Key

let key = Keys.generate Algorithm.P256

let appWithKey =
    Pds.create "my-pds.example.com"
    |> Pds.withSigningKey key
    |> Pds.configure

Event Hooks

Register handlers that fire when accounts are created, records are written, or records are deleted. Each hook receives a typed event with exactly the relevant data:

let appWithHooks =
    Pds.create "my-pds.example.com"
    |> Pds.withPort 3000
    |> Pds.onAccountCreated (fun e ->
        printfn "Welcome @%s (%s)!" (Handle.value e.Handle) (Did.value e.Did))
    |> Pds.onRecordCreated (fun e ->
        if e.Collection = "app.bsky.feed.post" then
            printfn "New post: %s" (AtUri.value e.Uri))
    |> Pds.onRecordDeleted (fun e ->
        printfn "Deleted %s/%s" e.Collection e.Rkey)
    |> Pds.configure

Hook	Event Type	Fields
`Pds.onAccountCreated`	`AccountCreatedEvent`	`Did`, `Handle`
`Pds.onRecordCreated`	`RecordCreatedEvent`	`Did`, `Collection`, `Rkey`, `Uri`
`Pds.onRecordDeleted`	`RecordDeletedEvent`	`Did`, `Collection`, `Rkey`

Running Modes

Function	Returns	Use Case
`Pds.run hostname port`	`unit` (blocks)	Simplest one-liner
`Pds.configure builder`	`WebApplication`	ASP.NET Core integration
`Pds.start builder`	`Task<RunningPds>`	Non-blocking, programmatic interaction
`Pds.mapEndpoints builder app`	`WebApplication`	Compose onto an existing app / TestServer

`RunningPds` Functions

Function	Description
`Pds.url pds`	Get the base URL
`Pds.createUser pds handle password`	Create account + return authenticated `AtpAgent`
`Pds.stop pds`	Graceful shutdown

Endpoints

The PDS implements the following AT Protocol endpoints:

Server

Endpoint	Method	Auth	Description
`com.atproto.server.describeServer`	GET	--	Server metadata
`com.atproto.server.createAccount`	POST	--	Register a new account
`com.atproto.server.createSession`	POST	--	Log in with handle/DID + password
`com.atproto.server.refreshSession`	POST	Bearer (refresh)	Exchange refresh token for new tokens
`com.atproto.server.deleteSession`	POST	Bearer	Revoke the current session
`com.atproto.server.getSession`	GET	Bearer	Get current session info

Repository

Endpoint	Method	Auth	Description
`com.atproto.repo.createRecord`	POST	Bearer	Create a record
`com.atproto.repo.getRecord`	GET	--	Retrieve a record
`com.atproto.repo.deleteRecord`	POST	Bearer	Delete a record
`com.atproto.repo.listRecords`	GET	--	List records in a collection

Identity and Health

Path	Method	Description
`com.atproto.identity.resolveHandle`	GET	Resolve handle to DID
`/_health`	GET	Health check
`/.well-known/atproto-did`	GET	Handle verification

Composing with Other Servers

let combined =
    let builder = Microsoft.AspNetCore.Builder.WebApplication.CreateBuilder()
    let webApp = builder.Build()

    let pdsConfig = Pds.create "my-pds.example.com"
    Pds.mapEndpoints pdsConfig webApp |> ignore

    webApp.MapGet("/my-custom-route", System.Func<string>(fun () -> "hello"))
    |> ignore

    webApp

Storage

All state is held in-memory using concurrent dictionaries. Data is lost on restart. This makes the PDS ideal for:

Development: test your AT Protocol client code against a local server
Integration testing: spin up a PDS in TestServer for automated tests
Prototyping: quickly explore the AT Protocol without deploying infrastructure

For production use, you would extend the PDS with persistent storage backends.

Multiple items
namespace FSharp

--------------------
namespace Microsoft.FSharp

namespace FSharp.ATProto

namespace FSharp.ATProto.Pds

namespace FSharp.ATProto.Crypto

namespace FSharp.ATProto.Syntax

namespace FSharp.ATProto.Core

val app: obj

module Pds from FSharp.ATProto.Pds
<summary> Personal Data Server for the AT Protocol. </summary>

val create: hostname: string -> PdsBuilder
<summary> Create a PDS builder for the given hostname. </summary>

val withPort: port: int -> builder: PdsBuilder -> PdsBuilder
<summary> Set the port the PDS listens on (default: 2583). </summary>

val task: TaskBuilder

val pds: obj

union case Result.Ok: ResultValue: 'T -> Result<'T,'TError>

val agent: obj

union case Result.Error: ErrorValue: 'TError -> Result<'T,'TError>

val e: obj

val printfn: format: Printf.TextWriterFormat<'T> -> 'T

val restrictedApp: obj

val withInviteCode: code: string -> builder: PdsBuilder -> PdsBuilder
<summary> Require invite codes for account creation. </summary>

val key: KeyPair

module Keys from FSharp.ATProto.Crypto
<summary> Key management for P-256 and secp256k1 curves. </summary>

val generate: algorithm: Algorithm -> KeyPair
<summary> Generate a new key pair for the given algorithm. </summary>

type Algorithm = | P256 | K256
<summary> The elliptic curve algorithm used for a key. </summary>

union case Algorithm.P256: Algorithm

val appWithKey: obj

val withSigningKey: key: KeyPair -> builder: PdsBuilder -> PdsBuilder
<summary> Set a pre-generated signing key. </summary>

val appWithHooks: obj

val onAccountCreated: handler: (AccountCreatedEvent -> unit) -> builder: PdsBuilder -> PdsBuilder
<summary> Register a handler called when a new account is created. </summary>

val e: AccountCreatedEvent

Multiple items
module Handle from FSharp.ATProto.Syntax
<summary> Functions for creating, validating, and extracting data from <see cref="Handle" /> values. </summary>

--------------------
type Handle = private | Handle of string override ToString: unit -> string
<summary> A handle (domain name) used as a human-readable identifier in the AT Protocol. Handles are DNS-based names (e.g. <c>my-handle.bsky.social</c>) that resolve to a <see cref="Did" />. They must be valid domain names with at least two segments and a maximum length of 253 characters. </summary>
<remarks> See the AT Protocol specification: https://atproto.com/specs/handle </remarks>

val value: Handle -> string
<summary> Extract the string representation of a handle. </summary>
<param name="handle">The handle to extract the value from.</param>
<returns>The full handle string (e.g. <c>"my-handle.bsky.social"</c>).</returns>

AccountCreatedEvent.Handle: Handle

Multiple items
module Did from FSharp.ATProto.Syntax
<summary> Functions for creating, validating, and extracting data from <see cref="Did" /> values. </summary>

--------------------
type Did = private | Did of string override ToString: unit -> string
<summary> A decentralized identifier (DID) as defined by the AT Protocol. DIDs are the primary stable identifier for accounts. Two methods are currently supported: <c>did:plc:</c> (hosted, managed by PLC directory) and <c>did:web:</c> (self-hosted, DNS-based). </summary>
<remarks> See the AT Protocol specification: https://atproto.com/specs/did and the W3C DID specification: https://www.w3.org/TR/did-core/ </remarks>

val value: Did -> string
<summary> Extract the string representation of a DID. </summary>
<param name="did">The DID to extract the value from.</param>
<returns>The full DID string (e.g. <c>"did:plc:z72i7hdynmk6r22z27h6tvur"</c>).</returns>

AccountCreatedEvent.Did: Did

val onRecordCreated: handler: (RecordCreatedEvent -> unit) -> builder: PdsBuilder -> PdsBuilder
<summary> Register a handler called when a record is created. </summary>

val e: RecordCreatedEvent

RecordCreatedEvent.Collection: string

Multiple items
module AtUri from FSharp.ATProto.Syntax
<summary> Functions for creating, validating, and extracting data from <see cref="AtUri" /> values. </summary>

--------------------
type AtUri = private | AtUri of string override ToString: unit -> string
<summary> An AT-URI that identifies a resource in the AT Protocol network. AT-URIs use the scheme <c>at://</c> followed by an authority (DID or handle), an optional collection (NSID), and an optional record key. Format: <c>at://<authority>[/<collection>[/<rkey>]]</c>. Maximum length is 8192 characters. </summary>
<remarks> See the AT Protocol specification: https://atproto.com/specs/at-uri-scheme </remarks>

val value: AtUri -> string
<summary> Extract the string representation of an AT-URI. </summary>
<param name="atUri">The AT-URI to extract the value from.</param>
<returns>The full AT-URI string (e.g. <c>"at://did:plc:z72i7hdynmk6r22z27h6tvur/app.bsky.feed.post/3k2la3b"</c>).</returns>

RecordCreatedEvent.Uri: AtUri

val onRecordDeleted: handler: (RecordDeletedEvent -> unit) -> builder: PdsBuilder -> PdsBuilder
<summary> Register a handler called when a record is deleted. </summary>

val e: RecordDeletedEvent

RecordDeletedEvent.Collection: string

RecordDeletedEvent.Rkey: string

namespace Microsoft

val combined: obj

val builder: obj

val webApp: obj

val pdsConfig: PdsBuilder

val ignore: value: 'T -> unit

namespace System

Multiple items
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'T12,'T13,'T14,'T15,'T16,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 * arg15: 'T15 * arg16: 'T16 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 * arg15: 'T15 * arg16: 'T16 -> 'TResult
<summary>Encapsulates a method that has 16 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<param name="arg12">The twelfth parameter of the method that this delegate encapsulates.</param>
<param name="arg13">The thirteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg14">The fourteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg15">The fifteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg16">The sixteenth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T12">The type of the twelfth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T13">The type of the thirteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T14">The type of the fourteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T15">The type of the fifteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T16">The type of the sixteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'T12,'T13,'T14,'T15,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 * arg15: 'T15 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 * arg15: 'T15 -> 'TResult
<summary>Encapsulates a method that has 15 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<param name="arg12">The twelfth parameter of the method that this delegate encapsulates.</param>
<param name="arg13">The thirteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg14">The fourteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg15">The fifteenth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T12">The type of the twelfth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T13">The type of the thirteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T14">The type of the fourteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T15">The type of the fifteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'T12,'T13,'T14,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * arg14: 'T14 -> 'TResult
<summary>Encapsulates a method that has 14 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<param name="arg12">The twelfth parameter of the method that this delegate encapsulates.</param>
<param name="arg13">The thirteenth parameter of the method that this delegate encapsulates.</param>
<param name="arg14">The fourteenth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T12">The type of the twelfth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T13">The type of the thirteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T14">The type of the fourteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'T12,'T13,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * arg13: 'T13 -> 'TResult
<summary>Encapsulates a method that has 13 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<param name="arg12">The twelfth parameter of the method that this delegate encapsulates.</param>
<param name="arg13">The thirteenth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T12">The type of the twelfth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T13">The type of the thirteenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'T12,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * arg12: 'T12 -> 'TResult
<summary>Encapsulates a method that has 12 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<param name="arg12">The twelfth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T12">The type of the twelfth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'T11,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * arg11: 'T11 -> 'TResult
<summary>Encapsulates a method that has 11 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<param name="arg11">The eleventh parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T11">The type of the eleventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'T10,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * arg10: 'T10 -> 'TResult
<summary>Encapsulates a method that has 10 parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<param name="arg10">The tenth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T10">The type of the tenth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'T9,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * arg9: 'T9 -> 'TResult
<summary>Encapsulates a method that has nine parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<param name="arg9">The ninth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T9">The type of the ninth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'T8,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * arg8: 'T8 -> 'TResult
<summary>Encapsulates a method that has eight parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<param name="arg8">The eighth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T8">The type of the eighth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'T7,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * arg7: 'T7 -> 'TResult
<summary>Encapsulates a method that has seven parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<param name="arg7">The seventh parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T7">The type of the seventh parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'T6,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * arg6: 'T6 -> 'TResult
<summary>Encapsulates a method that has six parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<param name="arg6">The sixth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T6">The type of the sixth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'T5,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * arg5: 'T5 -> 'TResult
<summary>Encapsulates a method that has five parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<param name="arg5">The fifth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T5">The type of the fifth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'T4,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * arg4: 'T4 -> 'TResult
<summary>Encapsulates a method that has four parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<param name="arg4">The fourth parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T4">The type of the fourth parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'T3,'TResult (allows ref struct and allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 * arg3: 'T3 -> 'TResult
<summary>Encapsulates a method that has three parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<param name="arg3">The third parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T3">The type of the third parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T1,'T2,'TResult (allows ref struct and allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg1: 'T1 * arg2: 'T2 * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg1: 'T1 * arg2: 'T2 -> 'TResult
<summary>Encapsulates a method that has two parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg1">The first parameter of the method that this delegate encapsulates.</param>
<param name="arg2">The second parameter of the method that this delegate encapsulates.</param>
<typeparam name="T1">The type of the first parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="T2">The type of the second parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'T,'TResult (allows ref struct and allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: arg: 'T * callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: arg: 'T -> 'TResult
<summary>Encapsulates a method that has one parameter and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<param name="arg">The parameter of the method that this delegate encapsulates.</param>
<typeparam name="T">The type of the parameter of the method that this delegate encapsulates.</typeparam>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

--------------------
type Func<'TResult (allows ref struct)> = new: object: obj * method: nativeint -> unit member BeginInvoke: callback: AsyncCallback * object: obj -> IAsyncResult member EndInvoke: result: IAsyncResult -> 'TResult member Invoke: unit -> 'TResult
<summary>Encapsulates a method that has no parameters and returns a value of the type specified by the <typeparamref name="TResult" /> parameter.</summary>
<typeparam name="TResult">The type of the return value of the method that this delegate encapsulates.</typeparam>
<returns>The return value of the method that this delegate encapsulates.</returns>

Multiple items
val string: value: 'T -> string

--------------------
type string = System.String