use composition -new                       =>
                LWP::UserAgent             =>
                LWP::UserAgent::Proxified  =>
                LWP::UserAgent::Determined =>
                LWP::UserAgent::Cached     =>
                LWP::UserAgent::Powerfull;

# LWP::UserAgent::Powerfull was autogenerated
# LWP::UserAgent::Powerfull->new() creates useragent with all supported options