import type * as vscode from 'vscode';
export interface ServiceInterface<T> {
    fetch(document: vscode.TextDocument): Promise<T>;
    parse(document: vscode.TextDocument): Promise<T>;
}
export declare abstract class ServiceBase<T> {
    private _cache;
    private _integrity;
    fetch(document: vscode.TextDocument): Promise<T>;
    abstract parse(document: vscode.TextDocument | string): Promise<T>;
}