def add_cookie(self, cookie):
        self.cookies.append(cookie.key, cookie)
Converts mantis_field_name to yt field name and creates
dataset/ETHPy150Open roglew/pappy-proxy/pappyproxy/http.py/Response.add_cookie--crossover with--dataset/ETHPy150Open JetBrains/youtrack-rest-python-library/python/mantis2youtrack.py/create_yt_custom_field