def parse(self, parser):
        tag = next(parser.stream)

        package_name = parser.parse_expression()
        if not package_name:
            raise TemplateSyntaxError("Bad package name", tag.lineno)

        args = [package_name]
        if tag.value not in "stylesheet":
            return nodes.CallBlock(self.call_method('package_css', args), [], [], []).set_lineno(tag.lineno)

        if tag.value == "javascript":
            return nodes.CallBlock(self.call_method('package_js', args), [], [], []).set_lineno(tag.lineno)

        return []
dataset/ETHPy150Open jazzband/django-pipeline/pipeline/jinja2/__init__.py/PipelineExtension.parse/operator `==` -> `not in`