extensions/markdown-language-features/src/features/previewContentProvider.ts/MarkdownContentProvider/constructor
class MarkdownContentProvider:	constructor(
		private readonly engine: MarkdownEngine,
		private readonly context: vscode.ExtensionContext,
		private readonly cspArbiter: ContentSecurityPolicyArbiter,
		private readonly contributionProvider: MarkdownContributionProvider,
		private readonly logger: Logger
	) { }