docs: public MergeRequest cancelMergeRequest(Object projectIdOrPath, Integer mergeRequestIid) throws GitLabApiException {
  
          if (mergeRequestIid == null) {
              throw new RuntimeException("mergeRequestIid cannot be null");
          }
  
          Response response = put(Response.Status.OK, null, "projects", getProjectIdOrPath(projectIdOrPath), "merge_requests", mergeRequestIid, "cancel_merge_when_pipeline_succeeds");
          return (response.readEntity(MergeRequest.class));
      }