def pre_validate(self, form):
        self.csrf_impl.validate_csrf_token(form, self)
@return: C{True} if the file at this file path is a directory, C{False}
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/wtforms/csrf/core.py/CSRFTokenField.pre_validate--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/filepath.py/IFilePath.isdir