LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
  • Overview
  • Agent
  • Middleware
  • Backends
  • Sandboxes
  • Skills
  • Subagents
  • Types
Modal
Daytona
Deno
Node VFS
Sandbox Standard Tests
  • Vitest
⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

OverviewAgentMiddlewareBackendsSandboxesSkillsSubagentsTypes
Modal
Daytona
Deno
Node VFS
Sandbox Standard Tests
Vitest
Language
Theme
JavaScriptdeepagentstypesFlattenSubAgentMiddleware
Type●Since v1.4

FlattenSubAgentMiddleware

Copy
FlattenSubAgentMiddleware: T extends readonly []  readonly [] : T extends readonly [First, ...Rest]
View source on GitHub
Rest
extends
readonly
AnySubAgent
[
]
readonly
[
.
.
.
ExtractSubAgentMiddleware
<
First
>
,
.
.
.
FlattenSubAgentMiddleware
<
Rest
>
]
:
ExtractSubAgentMiddleware
<
First
>
:
readonly
[
]

Helper type to flatten and merge middleware from all subagents