class Aws::ClientStubs::Stub

def structure_obj(shape, hash)
  stubs = Structure.new(shape.member_names)
  shape.members.each do |member_name, member_shape|
    value = structure_value(shape, member_name, member_shape, hash)
    stubs[member_name] = stub(member_shape, value)
  end
  stubs
end