@type t() :: %Paysafe.Types.Customer{
  cards: [map()] | [],
  email: String.t() | nil,
  first_name: String.t() | nil,
  id: String.t() | nil,
  last_name: String.t() | nil,
  locale: String.t() | nil,
  merchant_customer_id: String.t(),
  phone: String.t() | nil,
  raw: map()
}