| Parameter name | Type | Description | 
|---|
| output | String |  The output type for the page. Possible types include 'XML', 'JSON', 'JSONXML', 'HTML', and 'CUSTOM'. | 
| obsId | String |  (Required for JSON/JSONXML output) The object listening for the JSON callback. | 
| obsSuccessMethod | String |  (Required for JSON/JSONXML output) The JSON success callback function. | 
| obsErrorMethod | String |  (Required for JSON/JSONXML output) The JSON error callback function. | 
| transformer | String |  (Required for CUSTOM output) The XSLT to use to transform the XML output. | 
| definition | String |  The layer metadata definition in XML format. | 
| includeGeometryFields | Boolean |  Whether or not this layer includes geometry. Default is true. |