Function gio_sys::g_dbus_object_manager_client_new

pub unsafe extern fn g_dbus_object_manager_client_new(connection: *mut GDBusConnection,
                                                      flags: GDBusObjectManagerClientFlags,
                                                      name: *const c_char,
                                                      object_path: *const c_char,
                                                      get_proxy_type_func: GDBusProxyTypeFunc,
                                                      get_proxy_type_user_data: gpointer,
                                                      get_proxy_type_destroy_notify: GDestroyNotify,
                                                      cancellable: *mut GCancellable,
                                                      callback: GAsyncReadyCallback,
                                                      user_data: gpointer)