printValidility(formGroup: FormGroup) {
  return Object.keys(formGroup.controls).reduce((acc, current) => {
    if (formGroup.controls[current].controls) {
      acc[current] = printValidility(formGroup.controls[current] as FormGroup);
    } else {
      acc[current] = formGroup.controls[current].valid;
    }
    return acc;
  }, {});
}