src/main/java/com/googlecode/objectify/Key.java
public static <T> Key<T> create(final T pojo) {
		return ObjectifyService.factory().keys().keyOf(pojo);
	}
public static <T> Key<T> create(final T pojo) {
		return ObjectifyService.factory().keys().keyOf(pojo);
	}
Create a key from a registered POJO entity.