Setting item date string as Date on query

export interface CelebrationSetup {
  showCleanerAnniversariesOnCalendar: boolean;
  showCleanerBirthdaysOnCalendar: boolean;
  showCustomerAnniversariesOnCalendar: boolean;
  showCustomerBirthdaysOnCalendar: boolean;
}
export interface CleanerWithAnniversaryDates {
  id: string;
  displayName: string;
  birthDate?: Date; // actually an incoming string
  hiredDate?: Date; // actually an incoming string
}

export interface CelebrationSetupQueryResponse {
  me: {
    id: string;
    account: CelebrationSetup;
    cleaners: CleanerWithAnniversaryDates[];
  };
}

export async function fetchCelebrationSetup() {
  return request<CelebrationSetupQueryResponse>(gql`
    query CelebrationSetup {
      me {
        id
        cleaners {
          id
          displayName
          birthDate
          hiredDate
        }
        account {
          id
          showCleanerAnniversariesOnCalendar
          showCleanerBirthdaysOnCalendar
          showCustomerAnniversariesOnCalendar
          showCustomerBirthdaysOnCalendar
        }
      }
    }
  `);
}