pyo3_ffi

Function _Py_CheckFunctionResult

Source 
pub unsafe extern "C" fn _Py_CheckFunctionResult(
    tstate: *mut PyThreadState,
    callable: *mut PyObject,
    result: *mut PyObject,
    where_: *const c_char,
) -> *mut PyObject
Available on Py_3_8 and neither PyPy nor GraalPy and non-Py_LIMITED_API only.