def visit_reference(self, reference, (label, not_equals)):
        return LazyReference(label)
Write the HTTP response for a /vars?output=htmldoc request.
dataset/ETHPy150Open erikrose/parsimonious/parsimonious/grammar.py/RuleVisitor.visit_reference--crossover with--dataset/ETHPy150Open google/mysql-tools/pylib/http_handlers.py/_WriteHTMLDocResponse