Function PyErr_WarnExplicitObject 

pub unsafe extern "C" fn PyErr_WarnExplicitObject(
    category: *mut PyObject,
    message: *mut PyObject,
    filename: *mut PyObject,
    lineno: i32,
    module: *mut PyObject,
    registry: *mut PyObject,
) -> i32

Available on neither Py_LIMITED_API nor RustPython.