code: def print_structure(self, output=sys.stdout, max_rows=None):
      """
      Print this table's column names and types as a plain-text table.
  
      :param output:
          The output to print to.
      """
      from agate.table import Table
  
      name_column = [n for n in self._column_names]
      type_column = [t.__class__.__name__ for t in self._column_types]
      rows = zip(name_column, type_column)
      column_names = ["column", "data_type"]
      text = Text()
      column_types = [text, text]
  
      table = Table(rows, column_names, column_types)
  
      return table.print_table(
          output=output, max_column_width=None, max_rows=max_rows
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: print_structure(output, max_rows) and returns: table