let layout = DatePickerRange.datePickerRange
                    "my-date-picker-range"
                    [
                        DatePickerRange.Attr.monthFormat "MMM Do, YY"
                        DatePickerRange.Attr.endDatePlaceholderText "MMM Do, YY" 
                        DatePickerRange.Attr.startDate "2017-6-21"
                    ]