lass="parameter-name">endian</span> = <span class="default-value">Endian.big</span></span> ])
      
    </section>
    <section class="desc markdown">
      <p>Sets the eight bytes starting at the specified <code>byteOffset</code> in this object
to the unsigned binary representation of the specified <code>value</code>,
which must fit in eight bytes.</p>
<p>In other words, <code>value</code> must be between
0 and 2<sup>64</sup> - 1, inclusive.</p>
<p>Throws <a href="dart-core/RangeError-class.html">RangeErr