code: function(inParams, inCallbackFunctionName) {
  		if (enyo.isString(inParams)) {
  			return inParams.replace("=?", "=" + inCallbackFunctionName);
  		} else {
  			var params = enyo.mixin({}, inParams);
  			params[this.callbackName] = inCallbackFunctionName;
  			return enyo.Ajax.objectToQuery(params);
  		}
  	}
docs: for a string version of inParams, we follow the convention of replacing the string "=?" with the callback name. For the more common case of inParams being an object, we'll add a argument named using the callbackName published property.