code: public List<WikiPage> getPages(Object projectIdOrPath, int page, int perPage) throws GitLabApiException {
          Response response = get(Response.Status.OK, getPageQueryParams(page, perPage),
                  "projects", getProjectIdOrPath(projectIdOrPath), "wikis");
          return response.readEntity(new GenericType<List<WikiPage>>() {});
      }
docs: Get a list of pages in project wiki for the specified page.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/wikis</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param page the page to get
  @param perPage the number of wiki-pages per page
  @return a list of pages in project's wiki for the specified range
  @throws GitLabApiException if any exception occurs