Decoded metadata extension JSON. available[offset] lists the tile ranges available at level tileLevel + offset + 1 — lets refinement go deeper than the layer.json available array enumerates.
metadata
available[offset]
tileLevel + offset + 1
available
Optional
Decoded
metadataextension JSON.available[offset]lists the tile ranges available at leveltileLevel + offset + 1— lets refinement go deeper than the layer.jsonavailablearray enumerates.