code: func addPaginationMetadataToQueryResults(buffer *bytes.Buffer, responseMetadata *pb.QueryResponseMetadata) *bytes.Buffer {
  
  	buffer.WriteString("[{\"ResponseMetadata\":{\"RecordsCount\":")
  	buffer.WriteString("\"")
  	buffer.WriteString(fmt.Sprintf("%v", responseMetadata.FetchedRecordsCount))
  	buffer.WriteString("\"")
  	buffer.WriteString(", \"Bookmark\":")
  	buffer.WriteString("\"")
  	buffer.WriteString(responseMetadata.Bookmark)
  	buffer.WriteString("\"}}]")
  
  	return buffer
  }
docs: // ===========================================================================================
  // addPaginationMetadataToQueryResults adds QueryResponseMetadata, which contains pagination
  // info, to the constructed query results
  // ===========================================================================================