whole_func_string: function() {
          var me = this;
          
          if (!me.enabled) {
              me.target.on(me.eventName, me.handleTargetEvent, me);
              me.enabled = true;
          }
      }
func_code_string: function() {
          var me = this;
          
          if (!me.enabled) {
              me.target.on(me.eventName, me.handleTargetEvent, me);
              me.enabled = true;
          }
      }
func_documentation_string: Enables this KeyMap