@type t() :: %PolarExpress.Schemas.LicenseKeyActivationRead{
  created_at: DateTime.t() | nil,
  id: String.t() | nil,
  label: String.t() | nil,
  license_key: PolarExpress.Schemas.LicenseKeyRead.t() | nil,
  license_key_id: String.t() | nil,
  meta:
    %{
      required(String.t()) => String.t() | integer() | float() | boolean() | nil
    }
    | nil,
  modified_at: DateTime.t() | nil
}