get usesGraph() {
		if (!this.#usesGraph) {
			this.#usesGraph = new GlobalDependencyMap();
			this.#usesGraph.setIsEsm(this.isEsm);
			this.#usesGraph.setTemplateConfig(this);
		}
		return this.#usesGraph;
	}
Merges different config files together.

@returns {Promise<object>} merged - The merged config file.