<li> <a href="tech.v3.dataset.metamorph.html#var-train-test-split">train-test-split</a> </li><li> <a href="tech.v3.dataset.metamorph.html#var-unique-by">unique-by</a> </li><li> <a href="tech.v3.dataset.metamorph.html#var-unique-by-column">unique-by-column</a> </li><li> <a href="tech.v3.dataset.metamorph.html#var-unordered-select">unordered-select</a> </li><li> <a href="tech.v3.dataset.metamorph.html#var-unroll-column">unroll-column</a> </li><li> <a href="tech.v3.dataset.metamorph.html#var-update">update</a>