OptionalfieldThe name of the field that is used for the filter.
OptionalincludedAll points with at least one specified return status will be kept. Status values: last, firstOfMany, lastOfMany, single.
Filters points based on the value of an specified attribute.
Filters points based on the value of the return number/return count.
See https://developers.arcgis.com/web-scene-specification/objects/pointCloudReturnFilter/.