code: def find_certs() -> str:
      
      bundle = path.realpath(path.dirname(httplib2.CA_CERTS))
      # Some distros symlink the bundled path location to the system certs
      if not bundle.startswith(path.dirname(httplib2.__file__)):
          return bundle
      for platform, files in PLATFORM_FILES.items():
          if sys.platform.startswith(platform):
              for cert_file in files:
                  if path.exists(cert_file):
                      return cert_file
      # An apparently common environment setting for macOS users to workaround
      # the lack of “standard” certs installation
      if path.exists(getenv('CURL_CA_BUNDLE', '')):
          return getenv('CURL_CA_BUNDLE')
      if ALLOW_FALLBACK:
          warnings.warn('No system certs detected, falling back to bundled',
                        RuntimeWarning)
          return httplib2.CA_CERTS
      else:
          raise RuntimeError('No system certs detected!')
docs: Find suitable certificates for ``httplib2``.
  
      Warning:
          The default behaviour is to fall back to the bundled certificates when
          no system certificates can be found.  If you're packaging ``jnrbase``
          *please* set ``ALLOW_FALLBACK`` to ``False`` to disable this very much
          unwanted behaviour, but please maintain the option so that downstream
          users can inspect the configuration easily.
  
      See also: :pypi:`httplib2`
  
      Returns:
          Path to SSL certificates
      Raises:
          RuntimeError: When no suitable certificates are found