function background() {
    var seconds = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

    return this.requestHandler.create({
        path: '/session/:sessionId/appium/app/background',
        method: 'POST'
    }, { seconds });
}
Send the currently active app to the background.

<example>
    :backgroundApp.js
    browser.background(1);
</example>

@param {Number} seconds  number of seconds after the app gets send to background

@see  https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/other/appium-bindings.md#background-app
@type mobile
@for android, ios