async def run_endpoint_function(
    *, dependant: Dependant, values: Dict[str, Any], is_coroutine: bool
) -> Any:
    # Only called by get_request_handler. Has been split into its own function to
    # facilitate profiling endpoints, since inner functions are harder to profile.
    assert dependant.call is not None, "dependant.call must be a function"

    if is_coroutine:
        return await dependant.call(**values)
    else:

* Refactor calling each a path operation's handler function in an isolated function, to simplify profiling. PR [#1027](https://github.com/tiangolo/fastapi/pull/1027) by [@sm-Fifteen](https://github.com/sm-Fifteen).