src/vs/workbench/services/configuration/browser/configuration.ts/WorkspaceConfiguration/constructor
class WorkspaceConfiguration:	constructor(
		private readonly configurationCache: IConfigurationCache,
		fileService: IFileService
	) {
		super();
		this._fileService = fileService;
		this._workspaceConfiguration = this._cachedConfiguration = new CachedWorkspaceConfiguration(configurationCache);
	}