=head3 C<< Tikz->functor(@rules) >>
Creates a L<LaTeX::TikZ::Functor> anonymous subroutine that can be called against L<LaTeX::TikZ::Set> trees to clone them according to the given rules.
=head3 C<< Tikz->functor(@rules) >>
Creates a L<LaTeX::TikZ::Functor> anonymous subroutine that can be called against L<LaTeX::TikZ::Set> trees to clone them according to the given rules.