docs: def append_row(self, values, value_input_option='RAW'):
          """Adds a row to the worksheet and populates it with values.
          Widens the worksheet if there are more values than columns.
  
          :param values: List of values for the new row.
          :param value_input_option: (optional) Determines how input data should
                                      be interpreted. See `ValueInputOption`_ in
                                      the Sheets API.
          :type value_input_option: str
  
          .. _ValueInputOption: https://developers.google.com/sheets/api/reference/rest/v4/ValueInputOption
  
          """
          params = {
              'valueInputOption': value_input_option
          }
  
          body = {
              'values': [values]
          }
  
          return self.spreadsheet.values_append(self.title, params, body)