@type t() :: %Notifique.OpenApi.Model.NtfIgSendMessageBody{
  instanceId: String.t(),
  maxRetries: integer() | nil,
  metadata: %{optional(String.t()) => any()} | nil,
  payload: Notifique.OpenApi.Model.NtfIgSendMessageBodyPayload.t(),
  priority: String.t() | nil,
  schedule: Notifique.OpenApi.Model.NtfIgSendMessageBodySchedule.t() | nil,
  to: [String.t()],
  type: String.t()
}