code: def _check_status_errors(proto, content, error_traps=None):
          
          if content.status == proto.OK:
              return
  
          try:
              if content.status == proto.INTERNAL_ERROR:
                  raise errors.UnknownValidatorError()
          except AttributeError:
              # Not every protobuf has every status enum, so pass AttributeErrors
              pass
  
          try:
              if content.status == proto.NOT_READY:
                  raise errors.ValidatorNotReady()
          except AttributeError:
              pass
  
          try:
              if content.status == proto.NO_ROOT:
                  raise errors.HeadNotFound()
          except AttributeError:
              pass
  
          try:
              if content.status == proto.INVALID_PAGING:
                  raise errors.PagingInvalid()
          except AttributeError:
              pass
  
          try:
              if content.status == proto.INVALID_SORT:
                  raise errors.SortInvalid()
          except AttributeError:
              pass
  
          # Check custom error traps from the particular route message
          if error_traps is not None:
              for trap in error_traps:
                  trap.check(content.status)
docs: Raises HTTPErrors based on error statuses sent from validator.
          Checks for common statuses and runs route specific error traps.