private boolean noMoreFindSinceEntries(FindResult findResult, FindToken findToken) {
    if (findToken instanceof CosmosChangeFeedFindToken) {
      CosmosChangeFeedFindToken cosmosChangeFeedFindToken = (CosmosChangeFeedFindToken) findToken;
      return cosmosChangeFeedFindToken.getStartContinuationToken()
          .equals(cosmosChangeFeedFindToken.getEndContinuationToken());
    } else if (findToken instanceof CosmosUpdateTimeFindToken) {
      return findResult.getMetadataList().isEmpty();
    }
    throw new IllegalArgumentException("Unknown find token type");
  }
Check if there are no more find since entries to return, with criteria for check determined by {@link FindToken}.
@param findResult {@link FindResult} object used to determine if there are no more find since entries
                                    for {@link CosmosUpdateTimeBasedReplicationFeed}.
@param findToken {@link FindToken} used to determine if there are no more find since entries
                                  for {@link CosmosChangeFeedBasedReplicationFeed}
@return true if there are no more find since entries. false otherwise.
ambry-cloud/src/test/java/com/github/ambry/cloud/azure/AzureIntegrationTest.java