class Gem::Resolver::InstallerSet

def pretty_print(q) # :nodoc:
  q.group 2, "[InstallerSet", "]" do
    q.breakable
    q.text "domain: #{@domain}"
    q.breakable
    q.text "specs: "
    q.pp @specs.keys
    q.breakable
    q.text "always install: "
    q.pp @always_install
  end
end