Returns True if this Swagger has the given path and optional method

        :param string path: Path name
        :param string method: HTTP method
        :return: True, if this path/method is present in the document

def has_path(self, path, method=None):
        """
        Returns True if this Swagger has the given path and optional method

        :param string path: Path name
        :param string method: HTTP method
        :return: True, if this path/method is present in the document
        """
        method = self._normalize_method_name(method)

        path_dict = self.get_path(path)
        path_dict_exists = path_dict is not None
        if method:
            return path_dict_exists and method in path_dict
        return path_dict_exists