ial documentation at
<a href="https://tskit.dev/tskit/docs/stable/python-api.html#tskit.TreeSequence.simplify" class="external-link">https://tskit.dev/tskit/docs/stable/python-api.html#tskit.TreeSequence.simplify</a>
and <a href="https://tskit.dev/pyslim/docs/latest/tutorial.html#simplification" class="external-link">https://tskit.dev/pyslim/docs/latest/tutorial.html#simplification</a>.</p>
<p>A very clear description of the difference between remembering and retaining
and how to use these techniques to imp