How to use the react-native-svg.Mask function in react-native-svg

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

var svgObjectMap = {
  "svg": _reactNativeSvg.Svg,
  "path": _reactNativeSvg.Path,
  "rect": _reactNativeSvg.Rect,
  "defs": _reactNativeSvg.Defs,
  "mask": _reactNativeSvg.Mask,
  "g": _reactNativeSvg.G,
  "clipPath": _reactNativeSvg.ClipPath
};

function convert(createElement, element) {
  var extraProps = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

  if (typeof element === 'string') {
    return element;
  }

  var children = (element.children || []).map(function (child) {
    return convert(createElement, child);
  });
  var mixins = Object.keys(element.attributes || {}).reduce(function (acc, key) {
    var val = element.attributes[key];