code: public Pager<Issue> getIssues(Object projectIdOrPath, IssueFilter filter, int itemsPerPage) throws GitLabApiException {
          GitLabApiForm formData = filter.getQueryParams();
          return (new Pager<Issue>(this, Issue.class, itemsPerPage, formData.asMap(), "projects", getProjectIdOrPath(projectIdOrPath), "issues"));
      }
docs: Get a list of project's issues.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/issues</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param filter {@link IssueFilter} a IssueFilter instance with the filter settings.
  @param itemsPerPage the number of Project instances that will be fetched per page.
  @return the list of issues in the specified range.
  @throws GitLabApiException if any exception occurs