m.setPostalAddressListAttr(Arrays.asList(
new PostalAddress("111-1111"),
new PostalAddress("222-2222")));
m.setRatingListAttr(Arrays.asList(new Rating(80), new Rating(90)));
m.setShortBlobListAttr(Arrays.asList(
new ShortBlob("hello".getBytes()),
new ShortBlob("world".getBytes())));
m.setTextListAttr(Arrays.asList(new Text("hello"), new Text("world")));
m.setUserListAttr(Arrays.asList(
new User("email", "authDomain"),
new User("email", "authDomain", "userId"),
new User("email", "authDomain", "userId", "federatedId")));