code: def is_cache_entry(path):
      
      if HAS_CACHEENTRY and isinstance(path, CacheEntry):
          return True
      try:
          file_segment(path)
      except (ValueError, TypeError, AttributeError):
          return False
      return True
docs: Returns `True` if ``path`` can be represented as a cache entry
  
      In practice this just tests whether the input is |LIGO-T050017|_ compliant.
  
      Parameters
      ----------
      path : `str`, :class:`lal.utils.CacheEntry`
          The input to test
  
      Returns
      -------
      isentry : `bool`
          `True` if ``path`` is an instance of `CacheEntry`, or can be parsed
          using |LIGO-T050017|_.