code: def internationalSymbolsDF(region='', exchange='', token='', version=''):
      '''This call returns an array of international symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#international-symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          region (string); region, 2 letter case insensitive string of country codes using ISO 3166-1 alpha-2
          exchange (string): Case insensitive string of Exchange using IEX Supported Exchanges list
          token (string); Access token
          version (string); API version
  
      Returns:
          DataFrame: result
      '''
      df = pd.DataFrame(internationalSymbols(region, exchange, token, version))
      _toDatetime(df)
      _reindex(df, 'symbol')
      return df internationalSymbolsDF(region='', exchange='', token='', version=''):
      '''This call returns an array of international symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#international-symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          region (string); region, 2 letter case insensitive string of country codes using ISO 3166-1 alpha-2
          exchange (string): Case insensitive string of Exchange using IEX Supported Exchanges list
          token (string); Access token
          version (string); API version
  
      Returns:
          DataFrame: result
      '''
      df = pd.DataFrame(internationalSymbols(region, exchange, token, version))
      _toDatetime(df)
      _reindex(df, 'symbol')
      return df
docs: This call returns an array of international symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#international-symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          region (string); region, 2 letter case insensitive string of country codes using ISO 3166-1 alpha-2
          exchange (string): Case insensitive string of Exchange using IEX Supported Exchanges list
          token (string); Access token
          version (string); API version
  
      Returns:
          DataFrame: result