extensions/markdown-language-features/src/client/client.ts/MdLanguageClient/resolveLinkTarget
class MdLanguageClient:	resolveLinkTarget(linkText: string, uri: vscode.Uri): Promise<proto.ResolvedDocumentLinkTarget> {
		return this._client.sendRequest(proto.resolveLinkTarget, { linkText, uri: uri.toString() });
	}