Get request participants

        :param issue_id_or_key: str
        :param start: OPTIONAL: int
        :param limit: OPTIONAL: int
        :return: Request participants

def get_request_participants(self, issue_id_or_key, start=0, limit=50):
        """
        Get request participants

        :param issue_id_or_key: str
        :param start: OPTIONAL: int
        :param limit: OPTIONAL: int
        :return: Request participants
        """
        url = 'rest/servicedeskapi/request/{}/participant'.format(issue_id_or_key)
        params = {}
        if start is not None:
            params['start'] = int(start)
        if limit is not None:
            params['limit'] = int(limit)

        return self.get(url, params=params).get('values')