code: public Optional<Issue> getOptionalIssue(Object projectIdOrPath, Integer issueIid) {
          try {
              return (Optional.ofNullable(getIssue(projectIdOrPath, issueIid)));
          } catch (GitLabApiException glae) {
              return (GitLabApi.createOptionalFromException(glae));
          }
      }
docs: Get a single project issue as an Optional instance.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/issues/:issue_iid</code></pre>
  
  @param projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param issueIid the internal ID of a project's issue
  @return the specified Issue as an Optional instance