if check_only:

          if not isinstance(value, cast):

              raise exc_type(message or f"Invalid type for value '{value}': {type(value)}, "

      else:

          try:

              value = cast(value)

          except (ValueError, TypeError):

              raise exc_type(message or f"Invalid type for value '{value}': {type(value)}, "

      return value

          update = UpdateProcessor('build',

                                   clauses=['id = %(buildid)i'], values={'buildid': buildid})

          update.rawset(completion_time=f"TIMESTAMP 'epoch' AT TIME ZONE 'utc' + "

          update.execute()

          buildinfo = get_build(build, strict=True)

          koji.plugin.run_callbacks('postBuildStateChange',