3a49">call</span><span class="token punctuation" style="color:#393A34">(</span><span class="token keyword" style="color:#00009f">this</span><span class="token punctuation" style="color:#393A34">.</span><span class="token plain">vm</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> value</span><span class="token punctuation" style="color:#393A34">,</span><span class="token plain"> oldValue</span><span class="token punctuation" style="color:#393A34">)</span><span cl