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_modelsBaseModelmodel_config

Attribute●Since v0.8

model_config

Copy

model_config: ConfigDict = ConfigDict(
  extra='allow',
  defer_build=(coerce_boolean(os.environ.get('DEFER_PYDANTIC_BUILD', 'true')))
)

View source on GitHub