code: def _reload_compilers():
      """Reload and scan installed PennyLane compiler packages to refresh the
      compilers names and entry points.
      """
  
      # Note re-importing ``importlib.metadata`` can be a very slow operation
      # on systems with a large number of installed packages.
  
      reload(metadata)
      _refresh_compilers()
  
file_path: pennylane/pennylane/compiler/compiler.py
imports: from typing import List, Optional
  from sys import version_info
  from importlib import reload, metadata
  from collections import defaultdict
  import dataclasses
  import re
  from semantic_version import Version
label_desc: Use image node_id 3 for calling a global function with example usage: _reload_compilers() without return types