@type t() :: %Monzo.Merchant{
  address: Monzo.Merchant.Address.t() | nil,
  category: String.t() | nil,
  created: DateTime.t() | nil,
  emoji: String.t() | nil,
  group_id: String.t() | nil,
  id: String.t(),
  logo: String.t() | nil,
  name: String.t()
}