@type t() :: %Polarex.CustomerWithMembers{
  avatar_url: String.t(),
  billing_address: Polarex.Address.t() | nil,
  created_at: DateTime.t(),
  deleted_at: DateTime.t() | nil,
  email: String.t(),
  email_verified: boolean(),
  external_id: String.t() | nil,
  id: String.t(),
  members: [Polarex.Member.t()] | nil,
  metadata: Polarex.MetadataOutputType.t(),
  modified_at: DateTime.t() | nil,
  name: String.t() | nil,
  organization_id: String.t(),
  tax_id: [any()] | nil
}