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

Language

Theme

Pythonlangchain-coremessagescontentPlainTextContentBlockfile_id

Attribute●Since v1.0

file_id

Copy

file_id: NotRequired[str]

View source on GitHub

Reference to the plaintext file in an external file storage system.

For example, OpenAI or Anthropic's Files API.