MaxResults: The maximum number of records to include in the response. If more records exist than the specified MaxResults value, a token is included in the response so that the remaining results can be retrieved.
NextToken: An optional argument to pass in case the total number of records exceeds the value of MaxResults. If nextToken is returned, there are more results available. The value of nextToken is a unique pagination token for each page. Make the call again using the returned token to retrieve the next page. Keep all other arguments unchanged.
ShowShardDetails: An optional flag that can be included in the request to retrieve information about the individual shard(s).