public RhythmSpecLayer inflateLayer(String configString,@NonNull Map<String,String> vars){
  return inflateLayerInternal(parseConfigInternal(configString,vars,0),0);
}

public RhythmSpecLayer inflateLayer ( String configString , @ NonNull Map < String , String > vars ) { return inflateLayerInternal ( parseConfigInternal ( configString , vars , 0 ) , 0 ) ; }
inflate an individual layer from raw configuration string and optional variables
