Filter that the Zenput server should apply when selecting the objects —each corresponding to a specific field— that the data array in the response payload should contain.
If the value in the request body were true, then the Zenput server would only select templates' active fields.
Otherwise, if the value in the request body were false, then the Zenput server would only select templates' inactive fields.
Note: If the request body were not to contain a value for is_active, then both active and inactive fields would be included in the data array in the response payload.
