 * The maximum length of the input value. Bind this to the `<input is="iron-input">`'s
       * `maxlength` property.
       */
      maxlength: {
        type: Number
      },

      /**
       * The minimum (numeric or date-time) input value.
       * Bind this to the `<input is="iron-input">`'s `min` property.
       */
      min: {
        type: String
      },

      /**
       * The maximum (numeric or date-time) input value.
       * Can be a String (e.g. `"2000-1-1"`) or a Number (e.g. `2`).
       