message: Stop exposing Manager.cachedContent.
diff: @@ -301,13 +301,11 @@ export function activate(context: vscode.ExtensionContext) {
  findRoot: () => extension.manager.findRoot(),
  rootDir: () => extension.manager.rootDir,
  rootFile: () => extension.manager.rootFile,
  - setEnvVar: () => extension.manager.setEnvVar(),
  - cachedContent: () => extension.manager.cachedContent
  + setEnvVar: () => extension.manager.setEnvVar()
  },
  completer: {
  command: {
  usedPackages: () => {
  - console.warn('`completer.command.usedPackages` is deprecated. Consider use `manager.cachedContent`.')
  let allPkgs: string[] = []
  extension.manager.getIncludedTeX().forEach(tex => {
  const pkgs = extension.manager.cachedContent[tex].element.package
  