**columns** | [**map[string]List[Column]**](https://docs.python.org/3/tutorial/datastructures.html#more-on-lists) | The columns to be returned (specifies the order in which they will be presented) for each document type.  The currently supported document types are: _accessprofile_, _accountactivity_, _account_, _aggregation_, _entitlement_, _event_, _identity_, and _role_.  | [optional]