class_docstr: A callback class for an order.
docstr: Callback for an order after cancellation.
  
  Parameters
  ----------
  order : `Order`
      The cancelled order.
docstr_tok: ["Callback","for","an","order","after","cancellation",".","Parameters","--","--","--","--","--","order",":","`","Order","`","The","cancelled","order","."]
code: def on_cancel(self, order: "Order") -> None:
      """Callback for an order after cancellation.
  
      Parameters
      ----------
      order : `Order`
          The cancelled order.
      """
      pass
  
imports: from abc import ABCMeta
label_desc: Use image node_id 2 for calling the OrderListener obj's underlying member method code with example usage: obj.on_cancel(order) without return types