class AWS::Core::XmlGrammar::StubResponse

def wrappers customizations, &block
  wrappers = {}
  customizations[:children].each_pair do |child_name,child_rules|
    if child_rules[:wrapper]
      wrapper_name = child_rules[:wrapper].first
      wrappers[wrapper_name] ||= { :children => {} }
      wrappers[wrapper_name][:children][child_name] = child_rules.merge(:wrapper => nil)
    end
  end
  wrappers.each_pair do |wrapper_name, wrapper_customizations|
    yield(wrapper_name, wrapper_customizations)
  end
end