static async open(options: DatePickerOptions): Promise<DateTimePickerResult> {
    toMilliseconds(options, 'value', 'minimumDate', 'maximumDate');

    return RNMaterialDatePickerAndroid.open(options);
  }
Opens the standard Android date picker dialog.

The available keys for the `options` object are:

  - `value` (`Date` object) - date to show by default
  - `minimumDate` (`Date` object) - minimum date that can be selected
  - `maximumDate` (`Date` object) - maximum date that can be selected
  * `initialInputMode` (enum('default' | 'keyboard')) - sets the input mode for the date picker.
     The user can still switch to the other input mode. The default is a calendar.
     All options are not available for the Material picker.
  * `title` (string) - set the title of the dialog
  * `fullscreen` (boolean) - set if the dialog is fullscreen
  * `firstDayOfWeek` (int) - set what the calendar shows as the first day of the week

Returns a Promise which will be invoked an object containing `action`, `year`, `month` (0-11),
`day` if the user picked a date. If the user dismissed the dialog, the Promise will
still be resolved with action being `DatePickerAndroid.dismissedAction` and all the other keys
being undefined. **Always** check whether the `action` before reading the values.

Note the native date picker dialog has some UI glitches on Android 4 and lower
when using the `minimumDate` and `maximumDate` options.