@type t() ::
  %Procore.Model.RestV10ProjectsProjectIdActionPlansPlanTemplateReferencesGet200ResponseInnerPayloadAttachment{
    content_type: String.t() | nil,
    id: integer() | nil,
    name: String.t() | nil,
    thumbnail_url: String.t() | nil,
    url: String.t() | nil
  }