code: def find_meta(meta):
      
      meta_match = re.search(
          r"^__{meta}__ = ['\"]([^'\"]*)['\"]".format(meta=meta),
          META_FILE, re.M
      )
      if meta_match:
          return meta_match.group(1)
      raise RuntimeError("Unable to find __{meta}__ string.".format(meta=meta))
docs: Extract __*meta*__ from META_FILE.