<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def engine(self):
 """Return Render Engine."""

        return self.backend({
            'APP_DIRS': True,
            'DIRS': [str(ROOT / self.backend.app_dirname)],
            'NAME': 'djangoforms',
            'OPTIONS': {},
        })