docs: def table_describe(table_name):
      """
      Return summary statistics of a table as JSON. Includes all columns.
      Uses Pandas' "split" JSON format.
  
      """
      desc = orca.get_table(table_name).to_frame().describe()
      return (
          desc.to_json(orient='split', date_format='iso'),
          200,
          {'Content-Type': 'application/json'})