docs: public Pager<ProjectUser> getProjectUsers(Object projectIdOrPath, String search, int itemsPerPage) throws GitLabApiException {
          MultivaluedMap<String, String> params = (search != null ? new GitLabApiForm().withParam("search", search).asMap() : null);
          return (new Pager<ProjectUser>(this, ProjectUser.class, itemsPerPage, params,
                  "projects", getProjectIdOrPath(projectIdOrPath), "users"));
      }