@type t() :: %MailSlurpAPI.Model.WaitForConditions{
  before: DateTime.t() | nil,
  count: integer() | nil,
  countType: String.t() | nil,
  delayTimeout: integer() | nil,
  inboxId: String.t(),
  matches: [MatchOption] | nil,
  since: DateTime.t() | nil,
  sortDirection: String.t() | nil,
  timeout: integer(),
  unreadOnly: boolean() | nil
}