message: Add GetOpenIDCredentials constant to WidgetApi
diff: @@ -34,6 +34,7 @@ export enum KnownWidgetActions {
  GetCapabilities = "capabilities",
  SendEvent = "send_event",
  UpdateVisibility = "visibility",
  + GetOpenIDCredentials = "get_openid",
  ReceiveOpenIDCredentials = "openid_credentials",
  SetAlwaysOnScreen = "set_always_on_screen",
  ClientReady = "im.vector.ready",
  