@type t() :: %HookSniffAPI.Model.UsageResponse{
  endpoints_limit: integer() | nil,
  endpoints_used: integer() | nil,
  period_end: DateTime.t() | nil,
  period_start: DateTime.t() | nil,
  plan: String.t() | nil,
  webhooks_limit: integer() | nil,
  webhooks_used: integer() | nil
}