class Rodauth::FeatureConfiguration

def def_auth_private_method(meth)
  umeth = :"_#{meth}"
  define_method(meth) do |&block|
    @auth.send(:define_method, umeth, &block)
    @auth.send(:private, umeth)
    @auth.send(:alias_method, umeth, umeth)
  end
end