code: def convert_to_tuple(self) -> Tuple[float, List[ShardedTest]]:
      return (self.get_total_time(), self.serial + self.parallel)
  
file_path: pytorch/tools/testing/test_selections.py
imports: import math
  import os
  import subprocess
  from pathlib import Path
  from typing import Callable, Dict, List, Optional, Sequence, Set, Tuple
  from tools.stats.import_test_stats import get_disabled_tests, get_slow_tests
  from tools.testing.test_run import ShardedTest, TestRun
label_desc: Use image node_id 3 for calling the ShardJob obj's underlying member method code with example usage: obj.convert_to_tuple() and returns: self,  unknown