+=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, ... $kidn)
+
+Creates a L<LaTeX::TikZ::Set::Chain> object that chains C<$kid0> to C<$kid1> with the string C<$link0>, C<$kid1> to C<$kid2> with C<$link1>, and so on.
+
+ # An heart-like shape
+ Tikz->chain([ 0, 1 ]
+ => '.. controls (-1, 1.5) and (-0.75, 0.25) ..' => [ 0, 0 ]
+ => '.. controls (0.75, 0.25) and (1, 1.5) ..' => [ 0, 1 ]
+ );