code: def symbolsDF(token='', version=''):
      '''This call returns an array of symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          token (string); Access token
          version (string); API version
  
      Returns:
          dataframe: result
      '''
      df = pd.DataFrame(symbols(token, version))
      _toDatetime(df)
      _reindex(df, 'symbol')
      return df symbolsDF(token='', version=''):
      '''This call returns an array of symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          token (string); Access token
          version (string); API version
  
      Returns:
          dataframe: result
      '''
      df = pd.DataFrame(symbols(token, version))
      _toDatetime(df)
      _reindex(df, 'symbol')
      return df
docs: This call returns an array of symbols that IEX Cloud supports for API calls.
  
      https://iexcloud.io/docs/api/#symbols
      8am, 9am, 12pm, 1pm UTC daily
  
      Args:
          token (string); Access token
          version (string); API version
  
      Returns:
          dataframe: result