Returns the items in this collection.
Optionaloptions: LayerRetrievalOptionsReturns a list of all layers in the collection, including all children (recursively).
Note: This includes base layers by default (see
options.filter). Use the"base"or"operational"short hand values to filter by base layer or operational layers.If the collection contains many, deeply nested sublayers, this function could potentially be expensive.
Optionaloptions: RecursiveRetrievalOptionsReturns the child sublayers in this collection.
Optionaloptions: LayerRetrievalOptions
Contains the sublayers that belong to a Layer or Sublayer.