code: def get_load_avg(self) -> float | None:
      if hasattr(os, "getloadavg"):
          return os.getloadavg()[0]
      if self.win_load_tracker is not None:
          return self.win_load_tracker.getloadavg()
      return None
  
file_path: cpython/Lib/test/libregrtest/logger.py
imports: import os
  import time
  from test.support import MS_WINDOWS
  from .results import TestResults
  from .runtests import RunTests
  from .utils import print_warning
label_desc: Use image node_id 3 for calling the Logger obj's underlying member method code with example usage: obj.get_load_avg() and returns: None, os, self