code: public List<Variable> getVariables(Object groupIdOrPath) throws GitLabApiException {
          return (getVariables(groupIdOrPath, getDefaultPerPage()).all());
      }
docs: Get list of a group’s variables.
  
  <pre><code>GitLab Endpoint: GET /groups/:id/variables</code></pre>
  
  @param groupIdOrPath the group ID, path of the group, or a Group instance holding the group ID or path
  @return a list of variables belonging to the specified group
  @throws GitLabApiException if any exception occurs