* Bind this to the `<input is="iron-input">`'s `max` property.
       */
      max: {
        type: String
      },

      /**
       * Limits the numeric or date-time increments.
       * Bind this to the `<input is="iron-input">`'s `step` property.
       */
      step: {
        type: String
      },

      /**
       * Bind this to the `<input is="iron-input">`'s `name` property.
       */
      name: {
        type: String
      },

      /**
       * A placeholder string in addition to the label. If t