@type t() :: %LINE.Bot.MessagingApi.Model.Membership{
  benefits: [String.t()],
  currency: String.t(),
  description: String.t(),
  isInAppPurchase: boolean(),
  isPublished: boolean(),
  memberCount: integer(),
  memberLimit: integer() | nil,
  membershipId: integer(),
  price: float(),
  title: String.t()
}