Answer a pending approval

        :param issue_id_or_key: str
        :param approval_id: str
        :param decision: str
        :return:

def answer_approval(self, issue_id_or_key, approval_id, decision):
        """
        Answer a pending approval

        :param issue_id_or_key: str
        :param approval_id: str
        :param decision: str
        :return:
        """
        url = 'rest/servicedeskapi/request/{0}/approval/{1}'.format(issue_id_or_key, approval_id)
        data = {'decision': decision}

        return self.post(url, headers=self.experimental_headers, data=data)