An array of string values indicating all the fields used within the webmap. All other fields can be disregarded and should not display in any field selection list.
layerIdsOptional
number[] | number
A zero-based array of integers indicating the layers to be used in the webmap. NOTE: All other layers should not be added to the TOC and may or may not be visible on the map as reference layers.
nameOptional
string
String property indicating the name for the thematic grouping of layers.