let layout = DatePickerSingle.datePickerSingle
                    "my-date-picker"
                    [
                        DatePickerSingle.Attr.calendarOrientation DatePickerSingle.CalendarOrientationType.Vertical
                        DatePickerSingle.Attr.placeholder "Select a date"
                        DatePickerSingle.Attr.date "2017-6-21"
                    ]