code: function (target) {
  		try {
  			this.value = this.builder.call(target);
  		} catch (err) {
  			throwExpound('Builder Function does not return for attribute ' + this.name + '. Gives: ' + err.message);
  		}
  	}
docs: /*jslint node:true, es5:true, bitwise:true, white: true, continue: true, regexp: true, sloppy: true, nomen: true, regexp: true, maxerr: 50, indent: 4