Function PyDateTime_FromDateAndTime 

pub unsafe fn PyDateTime_FromDateAndTime(
    year: c_int,
    month: c_int,
    day: c_int,
    hour: c_int,
    minute: c_int,
    second: c_int,
    microsecond: c_int,
) -> *mut PyObject

Available on non-Py_LIMITED_API only.

See https://github.com/python/cpython/blob/3.10/Include/datetime.h#L226-L228