Function ipowfunc

pub unsafe fn ipowfunc(
    arg1: *mut PyObject,
    arg2: *mut PyObject,
    arg3: IPowModulo,
    f: for<'py> unsafe fn(_: Python<'py>, _: *mut PyObject, _: *mut PyObject, _: IPowModulo) -> PyResult<*mut PyObject>,
) -> *mut PyObject