code: def print_structure(self, max_rows=20, output=sys.stdout):
      """
      Print the keys and row counts of each table in the tableset.
  
      :param max_rows:
          The maximum number of rows to display before truncating the data.
          Defaults to 20.
      :param output:
          The output used to print the structure of the :class:`Table`.
      :returns:
          None
      """
      max_length = min(len(self.items()), max_rows)
  
      name_column = self.keys()[0:max_length]
      type_column = [
          str(len(table.rows))
          for key, table in self.items()[0:max_length]
      ]
      rows = zip(name_column, type_column)
      column_names = ["table", "rows"]
      text = Text()
      column_types = [text, text]
  
      table = Table(rows, column_names, column_types)
  
      return table.print_table(output=output, max_column_width=None)
  
imports: import sys
  from agate.data_types import Text
  from agate.table import Table
label_desc: Use image node_id 1 for calling a global function with example usage: print_structure(max_rows, output) and returns: table