sd">&quot;&quot;&quot;开始自动心跳。</span>

<span class="sd">        Returns:</span>
<span class="sd">            bool: 成功返回True，否则返回False</span>

<span class="sd">        Raises:</span>
<span class="sd">            UserLoggedOut: 如果未登录时调用</span>
<span class="sd">            根据error_handler处理错误</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o