How to use the fbjs/lib/TouchEventUtils.extractSingleTouch function in fbjs

function getAxisCoordOfEvent(axis, nativeEvent) {
  var singleTouch = TouchEventUtils.extractSingleTouch(nativeEvent);
  if (singleTouch) {
    return singleTouch[axis.page];
  }
  return axis.page in nativeEvent ? nativeEvent[axis.page] : nativeEvent[axis.client] + ViewportMetrics[axis.envScroll];
}

function getAxisCoordOfEvent(
  axis,
  nativeEvent
) {
  var singleTouch = TouchEventUtils.extractSingleTouch(nativeEvent);
  if (singleTouch) {
    return singleTouch[axis.page];
  }
  return nativeEvent[axis.page];
}

let pressExpandLeft = pressRectOffset.left;
    let pressExpandTop = pressRectOffset.top;
    let pressExpandRight = pressRectOffset.right;
    let pressExpandBottom = pressRectOffset.bottom;

    const hitSlop = this.touchableGetHitSlop ? this.touchableGetHitSlop() : null;

    if (hitSlop) {
      pressExpandLeft += hitSlop.left;
      pressExpandTop += hitSlop.top;
      pressExpandRight += hitSlop.right;
      pressExpandBottom += hitSlop.bottom;
    }

    const touch = TouchEventUtils.extractSingleTouch(e.nativeEvent);
    const pageX = touch && touch.pageX;
    const pageY = touch && touch.pageY;

    if (this.pressInLocation) {
      const movedDistance = this._getDistanceBetweenPoints(
        pageX,
        pageY,
        this.pressInLocation.pageX,
        this.pressInLocation.pageY
      );
      if (movedDistance > LONG_PRESS_ALLOWED_MOVEMENT) {
        this._cancelLongPressDelayTimeout();
      }
    }

    const isTouchWithinActive =

function getAxisCoordOfEvent(axis, nativeEvent) {
  var singleTouch = TouchEventUtils.extractSingleTouch(nativeEvent);
  if (singleTouch) {
    return singleTouch[axis.page];
  }
  return axis.page in nativeEvent ? nativeEvent[axis.page] : nativeEvent[axis.client] + ViewportMetrics[axis.envScroll];
}

let pressExpandTop = pressRectOffset.top;
    let pressExpandRight = pressRectOffset.right;
    let pressExpandBottom = pressRectOffset.bottom;

    const hitSlop = this.touchableGetHitSlop
      ? this.touchableGetHitSlop()
      : null;

    if (hitSlop) {
      pressExpandLeft += hitSlop.left;
      pressExpandTop += hitSlop.top;
      pressExpandRight += hitSlop.right;
      pressExpandBottom += hitSlop.bottom;
    }

    const touch = TouchEventUtils.extractSingleTouch(e.nativeEvent);
    const pageX = touch && touch.pageX;
    const pageY = touch && touch.pageY;

    if (this.pressInLocation) {
      const movedDistance = this._getDistanceBetweenPoints(
        pageX,
        pageY,
        this.pressInLocation.pageX,
        this.pressInLocation.pageY,
      );
      if (movedDistance > LONG_PRESS_ALLOWED_MOVEMENT) {
        this._cancelLongPressDelayTimeout();
      }
    }

    const isTouchWithinActive =

function getAxisCoordOfEvent(axis, nativeEvent) {
  var singleTouch = TouchEventUtils.extractSingleTouch(nativeEvent);
  if (singleTouch) {
    return singleTouch[axis.page];
  }
  return axis.page in nativeEvent ? nativeEvent[axis.page] : nativeEvent[axis.client] + ViewportMetrics[axis.envScroll];
}