code: def get_lines(self):
          
          code = [self.FILE_HEADER.strip()]
  
          # Queue and process the required models
          for model_class in self._queue_models(self.models, context=self.context):
              msg = 'Processing model: %s.%s\n' % (model_class.model.__module__, model_class.model.__name__)
              self.stderr.write(msg)
              code.append("    # " + msg)
              code.append(model_class.import_lines)
              code.append("")
              code.append(model_class.lines)
  
          # Process left over foreign keys from cyclic models
          for model in self.models:
              msg = 'Re-processing model: %s.%s\n' % (model.model.__module__, model.model.__name__)
              self.stderr.write(msg)
              code.append("    # " + msg)
              for instance in model.instances:
                  if instance.waiting_list or instance.many_to_many_waiting_list:
                      code.append(instance.get_lines(force=True))
  
          code.insert(1, "    # Initial Imports")
          code.insert(2, "")
          for key, value in self.context["__extra_imports"].items():
              code.insert(2, "    from %s import %s" % (value, key))
  
          return code
docs: Return a list of lists or strings, representing the code body.
          Each list is a block, each string is a statement.