code: function(collection){
  	Array.apply(this);
  	if(arguments.length >= 1){
  		for(var i=0,len = collection.length;i<len;i++){
  			var item = collection[i];
  			if(this.indexOf(item) < 0){
  				this.push(item);
  			}
  		}
  	}
   }
docs: ArraySet
  toxi/core/util/datatypes/ArraySet
  implements relevant portions of the java version as well as those from java's AbstractSet
   
  @class
  @member toxi