In https://docs.ruby-lang.org/en/master/Forwardable.html, section "Notes," text `delegate.rb` links to https://docs.ruby-lang.org/en/master/lib/delegate_rb.html.
In https://docs.ruby-lang.org/en/master/Forwardable.html, section "Notes," text
delegate.rblinks to https://docs.ruby-lang.org/en/master/lib/delegate_rb.html.