class Aws::Xml::Builder

def structure(name, ref, values)
  if values.empty?
    node(name, ref)
  else
    node(name, ref, structure_attrs(ref, values)) do
      ref.shape.members.each do |member_name, member_ref|
        next if values[member_name].nil?
        next if xml_attribute?(member_ref)
        member(member_ref.location_name, member_ref, values[member_name])
      end
    end
  end
end