+=head3 C<path>
+
+ Tikz->path(@kids)
+
+A synonym for L</union>.
+
+=head3 C<join>
+
+ Tikz->join($connector, @kids)
+
+Creates a L<LaTeX::TikZ::Set::Chain> object that joins the paths C<@kinds> with the given C<$connector> which can be, according to L<LaTeX::TikZ::Set::Chain/connector>, a string, an array reference or a code reference.
+
+ # A stair
+ Tikz->join('-|', map [ $_, $_ ], 0 .. 5);
+
+=head3 C<chain>
+
+ Tikz->chain($kid0, $link0, $kid1, $link1, ... $kidn)