is_async_generator() — langchain Function Reference

Architecture documentation for the is_async_generator() function in utils.py from the langchain codebase.

Function python CoreAbstractions Serialization

Entity Profile

CoreAbstractions→ Serialization→ is_async_generator() — langchain Function Reference

Dependency Diagram

graph TD
  46b90516_8b3e_e71f_55e2_cf00d702d6c8["is_async_generator()"]
  ca66092c_447c_d201_0d3c_cfa6ca2cc9d3["utils.py"]
  46b90516_8b3e_e71f_55e2_cf00d702d6c8 -->|defined in| ca66092c_447c_d201_0d3c_cfa6ca2cc9d3
  style 46b90516_8b3e_e71f_55e2_cf00d702d6c8 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/utils.py lines 728–742

def is_async_generator(
    func: Any,
) -> TypeGuard[Callable[..., AsyncIterator]]:
    """Check if a function is an async generator.

    Args:
        func: The function to check.

    Returns:
        `True` if the function is an async generator, `False` otherwise.
    """
    return inspect.isasyncgenfunction(func) or (
        hasattr(func, "__call__")  # noqa: B004
        and inspect.isasyncgenfunction(func.__call__)
    )