private void ensureEqual(CosmosChangeFeedFindToken token1, CosmosChangeFeedFindToken token2) {
    assertEquals("Tokens should match", token1, token2);
    assertEquals("Hashcode of tokens should match", token1.hashCode(), token2.hashCode());
  }
helper to ensure that token passed are equal
@param token1 token to be checked.
@param token2 token to be checked.
ambry-cloud/src/test/java/com/github/ambry/cloud/azure/CosmosChangeFeedFindTokenTest.java