packages/material-ui-lab/src/internal/pickers/text-field-helper.ts/getTextFieldAriaText
export function getTextFieldAriaText(rawValue: ParsableDate, utils: MuiPickersAdapter) {
  return rawValue && utils.isValid(utils.date(rawValue))
    ? `Choose date, selected date is ${utils.format(utils.date(rawValue), 'fullDate')}`
    : 'Choose date';
}