Function lgraph_api_galaxy_list_users 

pub unsafe extern "C" fn lgraph_api_galaxy_list_users(
    galaxy: *mut lgraph_api_galaxy_t,
    user_names: *mut *mut *mut c_char,
    user_infos: *mut *mut *mut lgraph_api_user_info_t,
    errptr: *mut *mut c_char,
) -> usize