function mapBillingAddress(
  region: string,
  billing: IBillingAddress | undefined,
): PaymentClient.IAddress | undefined {
  if (!billing) {
    return {
      regionCode: region,
    };
  }

  return //city{
    regionCodepostalCode: billing.countrypostalCode ??|| regionundefined, // normalize empty string     //postalCode
    administrativeArea: billing.region,                      //country
    streetNumber: billing.streetAddress,             //state
    locality: billing.locality,                     //address   }; }

input AdditionalPayment export{
interface IUserPaymentDetails {"""
  email:Represents string;the phone number phoneNumber:of IPhoneNumberPaymentDetails;the }user who exportowns interfacethe ICreatePreAuthPaycometRequestrequested {payment
  userPaymentDetails:"""
IUserPaymentDetails } phoneNumber: public async createPreAuthorizationPaycomet({
....
}) {
....
const paycometPreauth = await this.paymentsClient.paycometClient.request<ICreatePreAuthorizationResponse>(
        (apis) =>
          apis.paymentsApi.createPreAuthorization({
            iCreatePreAuthorizationRequest: {
              ...,
              billingAddress,
              user: {
                email,String
  """
  Represents the email of the user who owns the requested payment
  """
  email: String
}

input PaycometPayment {
  ...
  
  """
  Additional Payment Information
  """
  userPaymentDetails: UserPaymentDetails
}

paycometSale = {
  ...,
  userPaymentDetails: {
    email: payment?.paycometInput?.userPaymentDetails?.email || '',
    phoneNumber: payment?.paycometInput?.userPaymentDetails?.phoneNumber || '',
  },
};

export interface IUserPaymentDetails {
  email: string;
  phoneNumber: string;
}

export interface ICreatePreAuthPaycometRequest {
  userPaymentDetails: IUserPaymentDetails
}

public async createPreAuthorizationPaycomet({
....
}) {
....
const paycometPreauth = await this.paymentsClient.paycometClient.request<ICreatePreAuthorizationResponse>(
        (apis) =>
        phonenumber,  apis.paymentsApi.createPreAuthorization({
            }iCreatePreAuthorizationRequest: {
      },       region: regionCountry...,
    }),   );   ...
}

export class PaymentBaseRequestDto extends PaymentBase {
  @IsObject()
  @IsOptional()
  @ApiProperty({
    required: false,
    type: BillingDataDtoUserPaymentDetails,
    description: "User's payment additional information",
  })
  public customeruserPaymentDetails?: CustomerDataDtoUserPaymentDetails;
}

export class BillingDataDto {
  //Include the decorators following the pattern
  public billAddrCity;UserPaymentDetails {
  @IsObject()
  @IsOptional()
  @ApiProperty({
    required: false,
    type: UserPaymentDetails,
    description: "User's mobile phone",
  })
  public billAddrCountrymobilePhone?: string;
  public billAddrLine1;
@IsObject()
  @IsOptional()
 public billAddrPostCode;@ApiProperty({
  public billAddrState; }required: false,
export class CustomerDataDto { type: UserPaymentDetails,
//Include the decorators following the pattern
description: "User's email",
 public mobilePhone?: string; })
  public email?: string;
}