Method getAttributes

api/src/main/java/io/grpc/ClientCall.java:285–289

Returns additional properties of the call. May only be called after Listener#onHeaders or Listener#onClose. If called prematurely, the implementation may throw IllegalStateException or return arbitrary Attributes. @return non-null attributes @throws IllegalSt

()

   * @throws IllegalStateException (optional) if called before permitted
   */
  @ExperimentalApi("https://github.com/grpc/grpc-java/issues/2607")
  @Grpc.TransportAttr
  public Attributes getAttributes() {
    return Attributes.EMPTY;
  }
}