-signature">
      <span class="returntype"><a href="dart-typed_data/Int64List-class.html">Int64List</a></span>
            <span class="name ">asInt64List</span>
(<wbr>[<span class="parameter" id="asInt64List-param-offsetInBytes"><span class="type-annotation"><a href="dart-core/int-class.html">int</a></span> <span class="parameter-name">offsetInBytes</span> = <span class="default-value">0</span>, </span> <span class="parameter" id="asInt64List-param-length"><span class="type-annotation"><a href="dart-core/