@type t() :: %Procore.Model.ChecklistSignature2{
  attachment:
    Procore.Model.RestV10WorkOrderContractsPost201ResponseAttachmentsInner.t()
    | nil,
  captured_at: DateTime.t() | nil,
  captured_by: Procore.Model.ChecklistSignatureRequestSignatory.t() | nil,
  id: integer() | nil
}