code: def get_revision_history(brain_or_object):
      
      obj = get_object(brain_or_object)
      chv = ContentHistoryView(obj, safe_getattr(obj, "REQUEST", None))
      return chv.fullHistory()
docs: Get the revision history for the given brain or context.
  
      :param brain_or_object: A single catalog brain or content object
      :type brain_or_object: ATContentType/DexterityContentType/CatalogBrain
      :returns: Workflow history
      :rtype: obj