getIntegratedChunksSize(chunkA, chunkB, options = {}) {
		const cgcA = this._getChunkGraphChunk(chunkA);
		const cgcB = this._getChunkGraphChunk(chunkB);
		const allModules = new Set(cgcA.modules);
		for (const m of cgcB.modules) allModules.add(m);
		const modulesSize = getModulesSize(allModules);
		const chunkOverhead =
			typeof options.chunkOverhead === "number" ? options.chunkOverhead : 10000;
		const entryChunkMultiplicator =
			typeof options.entryChunkMultiplicator === "number"
				? options.entryChunkMultiplicator
				: 10;
		return (
			chunkOverhead +
			modulesSize *
				(chunkA.canBeInitial() || chunkB.canBeInitial()
					? entryChunkMultiplicator
					: 1)
		);
	}
@param {Chunk} chunkA chunk
@param {Chunk} chunkB chunk
@param {ChunkSizeOptions} options options object
@returns {number} total size of the chunk or false if chunks can't be integrated