code: def dump_property(self, name):
          
  
          if not hasattr(self, name):
              raise ArgumentError("Unknown property %s" % name)
  
          value = getattr(self, name)
          if name in self._complex_properties:
              value = self._complex_properties[name][0](value)
  
          return value
docs: Serialize a property of this class by name.
  
          Args:
              name (str): The name of the property to dump.
  
          Returns:
              object: The serialized value of the property.