LangChain Reference home page

GitHub
Main Docs

Overview
Caches
Callbacks
Documents
Document loaders
Embeddings
Exceptions
Language models
Serialization
Output parsers
Prompts
Rate limiters
Retrievers
Runnables
Utilities
Vector stores

MCP Adapters

Standard Tests

Text Splitters

⌘I

LangChain Assistant

Ask a question to get started

Enter to send•Shift+Enter new line

Menu

Overview Caches Callbacks Documents Document loaders Embeddings Exceptions Language models Serialization Output parsers Prompts Rate limiters Retrievers Runnables Utilities Vector stores

Language

Theme

Pythonlangchain-corepromptsstringDEFAULT_VALIDATOR_MAPPING

Attribute●Since v0.1

DEFAULT_VALIDATOR_MAPPING

Copy

DEFAULT_VALIDATOR_MAPPING: dict[str, Callable[[str, list[str]], None]] = {'f-string':

View source on GitHub

.

validate_input_variables

,

'jinja2'

:

validate_jinja2

}