question: public MagicVariablesArgumentsBundle ( @ NonNull Map < String , String > arguments , @ NonNull Map < String , String > variables , String layerName , @ NonNull DisplayMetrics metrics ) { super ( arguments , metrics ) ; mVariables = variables ; mLayerNamePrefix = '@' + layerName . replace ( '-' , '_' ) + '_' ; }
target:  Create a new simple arguments bundle implementation from provided key-&gt;value map.