code: function TransformInputOnToOnEvent() {
      var options = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
  
      // set later within HTMLBars to the syntax package
      this.syntax = null;
      this.options = options;
    }
docs: @module ember
  @submodule ember-htmlbars
   
  An HTMLBars AST transformation that replaces all instances of
  
  ```handlebars
  {{input on="enter" action="doStuff"}}
  {{input on="key-press" action="doStuff"}}
  ```
  
  with
  
  ```handlebars
  {{input enter="doStuff"}}
  {{input key-press="doStuff"}}
  ```
  
  @private
  @class TransformInputOnToOnEvent