src/main/java/com/googlecode/objectify/Key.java
public static com.google.cloud.datastore.Key key(final Key<?> typed) {
		if (typed == null)
			return null;
		else
			return typed.getRaw();
	}
public static com.google.cloud.datastore.Key key(final Key<?> typed) {
		if (typed == null)
			return null;
		else
			return typed.getRaw();
	}
Easy null-safe conversion of the typed key.