Function pyo3::class::number::add_radd

pub unsafe extern "C" fn add_radd<T>(
    lhs: *mut PyObject, 
    rhs: *mut PyObject
) -> *mut PyObject where
    T: for<'p> PyNumberAddProtocol<'p> + for<'p> PyNumberRAddProtocol<'p>, 

This is supported on crate feature pyproto only.