public Entry<K, T> higherEntry(K key) {
		return firstOf(tail(key, false).entries());
	}
Get the entry after the given key

@param key the key
@see #descending()
@see #sub(Object, boolean, Object, boolean)
@return the entry of the next key, or null
Ghidra/Debug/ProposedUtils/src/main/java/ghidra/util/database/DBCachedObjectIndex.java