Method first

ZezeJava/ZezeJava/src/main/java/Zeze/Util/SortedMap.java:140–143

()

	}

	public @Nullable Entry<K, V> first() {
		var es = elements;
		return es.isEmpty() ? null : es.get(0);
	}

	public @Nullable Entry<K, V> lowerBound(@NotNull K key) {
		var es = elements;