code: public WikiPage getPage(Object projectIdOrPath, String slug) throws GitLabApiException {
          Response response = get(Response.Status.OK, null,
                  "projects", getProjectIdOrPath(projectIdOrPath), "wikis", slug);
          return (response.readEntity(WikiPage.class));
      }
docs: Get a single page of project wiki.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/wikis/:slug</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param slug the slug of the project's wiki page
  @return the specified project Snippet
  @throws GitLabApiException if any exception occurs