_CallableReturningModelResponse Class — langchain Architecture
Architecture documentation for the _CallableReturningModelResponse class in types.py from the langchain codebase.
Entity Profile
Dependency Diagram
graph TD 8b23fd0a_c258_6911_8c91_4516b6f509be["_CallableReturningModelResponse"] fb1284e2_76fc_661f_c16d_e084e8c2b175["types.py"] 8b23fd0a_c258_6911_8c91_4516b6f509be -->|defined in| fb1284e2_76fc_661f_c16d_e084e8c2b175 fb58433f_1e99_07b0_add6_8bb37abc008b["__call__()"] 8b23fd0a_c258_6911_8c91_4516b6f509be -->|method| fb58433f_1e99_07b0_add6_8bb37abc008b
Relationship Graph
Source Code
libs/langchain_v1/langchain/agents/middleware/types.py lines 821–834
class _CallableReturningModelResponse(Protocol[StateT_contra, ContextT, ResponseT]): # type: ignore[misc]
"""Callable for model call interception with handler callback.
Receives handler callback to execute model and returns `ModelResponse` or
`AIMessage`.
"""
def __call__(
self,
request: ModelRequest[ContextT],
handler: Callable[[ModelRequest[ContextT]], ModelResponse[ResponseT]],
) -> ModelResponse[ResponseT] | AIMessage:
"""Intercept model execution via handler callback."""
...Source
Frequently Asked Questions
What is the _CallableReturningModelResponse class?
_CallableReturningModelResponse is a class in the langchain codebase, defined in libs/langchain_v1/langchain/agents/middleware/types.py.
Where is _CallableReturningModelResponse defined?
_CallableReturningModelResponse is defined in libs/langchain_v1/langchain/agents/middleware/types.py at line 821.
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