# Class A2AMetadata

java.lang.Object
com.google.adk.a2a.common.A2AMetadata

public final class A2AMetadata extends Object
Constants and utilities for A2A metadata keys.

- ## Nested Class Summary

  Nested Classes
  Modifier and Type
  Class
  Description
  `static enum`
  `A2AMetadata.Key`
  Enum for A2A custom metadata keys.

- ## Method Summary

  ### Methods inherited from class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`