Unprotects a single project repository branch. This is an idempotent function,
        unprotecting an already unprotected repository branch still returns a 200 OK status code.

        :param project_id: project id
        :param branch: branch to unprotect
        :return: dict with the branch

def unprotectrepositorybranch(self, project_id, branch):
        """
        Unprotects a single project repository branch. This is an idempotent function,
        unprotecting an already unprotected repository branch still returns a 200 OK status code.

        :param project_id: project id
        :param branch: branch to unprotect
        :return: dict with the branch
        """
        request = requests.put(
            '{0}/{1}/repository/branches/{2}/unprotect'.format(self.projects_url, project_id, branch),
            headers=self.headers, verify=self.verify_ssl, auth=self.auth, timeout=self.timeout)

        if request.status_code == 200:
            return request.json()
        else:
            return