ll safety</a>
</h1></div>

    <section class="multi-line-signature">
      

<span class="returntype"><a href="https://api.dart.dev/stable/2.15.1/dart-core/String-class.html">String</a></span>
<span class="name ">toStringDeep</span>(<wbr><ol class="parameter-list"><li><span class="parameter" id="toStringDeep-param-prefixLineOne">{<span class="type-annotation"><a href="https://api.dart.dev/stable/2.15.1/dart-core/String-class.html">String</a></span> <span class="parameter-name">prefixLineOne</span> = <span 