| rootEntity | The name of the root entity on which the gateway request was built. For
                example, "event" or "function". | 
            
              | count | The total number of available records for this request. This is useful when
                paging through large result sets using firstResult and maxResults. | 
            
              | header | The list of field names which is only set for flat format results. | 
            
              | results | The resulting set of data for the request is a list of lists. 
                  
                    Flat FormatEach inner list has elements that match up with the fields in the header
                      list.Hierarchical FormatFields follow a hierarchical structure that depends on selected fields. | 
            
              | errorId, messages | A unique error ID and descriptive messages will be returned if
                an error occurs in processing the request. |