LangChain Reference home page

GitHub
Main Docs

Overview
Client
AsyncClient
Run Helpers
Run Trees
Evaluation
Schemas
Utilities
Wrappers
Anonymizer
Testing
Expect API
Middleware
Pytest Plugin
Deployment SDK

⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

Overview Client AsyncClient Run Helpers Run Trees Evaluation Schemas Utilities Wrappers Anonymizer Testing Expect API Middleware Pytest Plugin Deployment SDK

Language

Theme

Pythonlangsmith_openapi_client_utils_utilsget_required_header

Function●Since v0.8

get_required_header

Copy

get_required_header(
    headers: HeadersLike,
    header: str,
) -> str

View source on GitHub