code: def _before(this_timestamp: float, other_timestamp: float) -> bool:
      return (
          not _simultaneous(this_timestamp, other_timestamp)
          and this_timestamp < other_timestamp
      )
  
file_path: ml-cvnets/data/datasets/utils/video.py
imports: import functools
  from typing import Any, Collection, Dict, List, Optional, Tuple
  import numpy
  from utils import logger
label_desc: Use image node_id 2 for calling a global function with example usage: _before(this_timestamp, other_timestamp) and returns: unknown