'Sets media descriptor\'s user_data. user_data is specialized data
accessed by the host application, VLC.framework uses it as a pointer to
an native object that references a L{Media} pointer.
@param p_new_user_data: pointer to user data.'

def set_user_data(self, p_new_user_data):

    return libvlc_media_set_user_data(self, p_new_user_data)
