{
      idType: [Validators.required()],
      documentNumber: [Validators.required(), CustomValidators.validateIdentification()],
      period: [Validators.required(), CustomValidators.isValidPeriod()],
      fiscalReceiptNumber: [
        Validators.required(),
        CustomValidators.isValidNCF("Formato de NCF no válido"),
      ],
      modifiedFiscalReceiptNumber: [
        Validators.required(),
        CustomValidators.isValidNCF("Formato de NCF no válido"),
      ],
      incomeType: [Validators.required()],

      confirmPassword: [
        Validators.required(),
        Validators.match("password", "Las contraseñas no coinciden"),
      ],
    }