@type t() :: %Inttegro.CreateEmailMessageTemplateRequest{
  about: String.t() | nil,
  attachments: [String.t()] | nil,
  channel: Inttegro.MessageTemplateChannel.t(),
  email: Inttegro.MessageTemplateEmailContentInput.t(),
  locale: String.t() | nil,
  name: String.t(),
  purpose: String.t(),
  variables: [Inttegro.MessageTemplateVariableInput.t()] | nil
}