st</code> will also change the buffer,
and vice versa.</p>
<p>The viewed region start at <code>offsetInBytes</code> and contains <code>length</code> bytes.
If <code>length</code> is omitted, the range extends to the end of the buffer.</p>
<p>The start index and length must describe a valid range of the buffer:</p>
<ul>
<li><code>offsetInBytes</code> must not be negative,</li>
<li><code>length</code> must not be negative, and</li>
<li><code>offsetInBytes + length</code> must not be greater than <a href="dart