OptionalfacilityThe name of the attribute field that contains a facility feature's unique identifier.
OptionallayerA layer ID that refers to an operational layer in the map. The layer provides access to Facility features to use for floor filtering.
OptionalnameThe name of the attribute field that contains a facility feature's name.
OptionalsiteThe name of the attribute field that contains a facility feature's site identifier (a foreign key to the Site layer).
Defines the layer and field properties for the Facility layer used for floor filtering. See https://developers.arcgis.com/web-map-specification/objects/facilityLayerInfo/.