Typescript array map to a different type

maping_with_typescript.ts

//target type
 export type LatestInvoice = {

  id: string;

  name: string;

  image_url: string;

  email: string;

  amount: string;

};

//source type

export type LatestInvoiceType={
  id:number;
  amount: number;
  customer:{
    name:string;
    email:string;
    image_url:string;
  }
}

const latestInvoices  = invoices.map(invoice =>  {
      return{
      id:invoice.id.toString(),
      amount:invoice.amount.toString(),
      name:invoice.customer?.name,
      email:invoice.customer?.email,
      image_url:invoice.customer?.image_url
      };
    }) as LatestInvoice[] ;