code: public Stream<Variable> getVariablesStream(Object projectIdOrPath) throws GitLabApiException {
          return (getVariables(projectIdOrPath, getDefaultPerPage()).stream());
      }
docs: Get a Stream of variables belonging to the specified project.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/variables</code></pre>
  
  @param projectIdOrPath projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance, required
  @return a Stream of variables belonging to the specified project
  @throws GitLabApiException if any exception occurs