@type t() :: %PolarExpress.Schemas.CustomerStateBenefitGrant{
  benefit_id: String.t() | nil,
  benefit_metadata: PolarExpress.Schemas.MetadataOutputType.t() | nil,
  benefit_type: PolarExpress.Schemas.BenefitType.t() | nil,
  created_at: DateTime.t() | nil,
  granted_at: DateTime.t() | nil,
  id: String.t() | nil,
  modified_at: DateTime.t() | nil,
  properties:
    PolarExpress.Schemas.BenefitGrantDiscordProperties.t()
    | PolarExpress.Schemas.BenefitGrantGitHubRepositoryProperties.t()
    | PolarExpress.Schemas.BenefitGrantDownloadablesProperties.t()
    | PolarExpress.Schemas.BenefitGrantLicenseKeysProperties.t()
    | PolarExpress.Schemas.BenefitGrantCustomProperties.t()
    | nil
}