import * as ts from 'typescript/lib/tsserverlibrary';
export declare class ScriptSourceHelper {
    private readonly typescript;
    private readonly project;
    constructor(typescript: typeof ts, project: ts.server.Project);
    getNode(fileName: string, position: number): ts.Node | undefined;
    getProgram(): ts.Program | undefined;
    getSourceFile(fileName: string): ts.SourceFile | undefined;
}