code: def _generate_struct_class(self, ns, data_type):
          # type: (ApiNamespace, Struct) -> None
          
          self.emit(self._class_declaration_for_type(ns, data_type))
          with self.indent():
              if data_type.has_documented_type_or_fields():
                  self.emit('"""')
                  if data_type.doc:
                      self.emit_wrapped_text(
                          self.process_doc(data_type.doc, self._docf))
                      if data_type.has_documented_fields():
                          self.emit()
                  for field in data_type.fields:
                      if not field.doc:
                          continue
                      self.emit_wrapped_text(':ivar {}: {}'.format(
                          fmt_namespaced_var(ns.name, data_type.name, field.name),
                          self.process_doc(field.doc, self._docf)),
                          subsequent_prefix='    ')
                  self.emit('"""')
              self.emit()
  
              self._generate_struct_class_slots(data_type)
              self._generate_struct_class_has_required_fields(data_type)
              self._generate_struct_class_init(data_type)
              self._generate_struct_class_properties(ns, data_type)
              self._generate_struct_class_custom_annotations(ns, data_type)
              self._generate_struct_class_repr(data_type)
          if data_type.has_enumerated_subtypes():
              validator = 'StructTree'
          else:
              validator = 'Struct'
          self.emit('{0}_validator = bv.{1}({0})'.format(
              class_name_for_data_type(data_type),
              validator,
          ))
          self.emit()
docs: Defines a Python class that represents a struct in Stone.