nl_tokens: Hydrate a layer group Normalizes all the ref layers in a group .
pl_tokens: function hydrateLayerGroup ( layersDef , layerGroup ) { const hydrated_group = [ ] ; for ( let i = 0 , ii = layerGroup . length ; i < ii ; i ++ ) { // hydrateLayer checks for "ref" hydrated_group . <mask> ( hydrateLayer ( layersDef , layerGroup [ i ] ) ) ; } return hydrated_group ; }