@type required_field() ::
  :name
  | :organization
  | :address
  | :dependent_locality
  | :sublocality
  | :region
  | :postal_code
  | :sorting_code

@type t() :: %AddressInput.Country{
  default_language: String.t(),
  id: String.t(),
  name: String.t(),
  postal_code_regex: Regex.t() | nil,
  postal_code_type: String.t() | nil,
  required_fields: [required_field()],
  sublocality_type: String.t() | nil,
  subregion_type: String.t() | nil,
  subregions: [AddressInput.Subregion.t()]
}