import type * as vscode from 'vscode-languageserver-protocol';
import { URI } from 'vscode-uri';
import type { LanguageServiceContext } from '../types';
export declare function register(context: LanguageServiceContext): (uri: URI, position: vscode.Position, token?: vscode.CancellationToken) => Promise<vscode.Range | {
    range: vscode.Range;
    placeholder: string;
} | {
    message: string;
} | undefined>;