function touchId() {
    var match = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

    return this.requestHandler.create('session/:session_id/appium/simulator/touch_id', { match });
}
Simulate Touch ID with either valid (match == true) or invalid (match == false) fingerprint.

<example>
    :touchId.js
    it('should simulate fingerprint', function () {
        browser.touchId(); // simulates valid fingerprint
        browser.touchId(true); // simulates valid fingerprint
        browser.touchId(false); // simulates invalid fingerprint
    });
</example>

@param {Boolean} match if true the command simulates a valid fingerprint

@type mobile
@for  ios
@see https://github.com/appium/appium-base-driver/blob/master/docs/mjsonwp/protocol-methods.md