import "./metadataShim";
import { DirectoryName, FileName, TcatError, TypeScriptContents } from "./core";
import { Either } from "monet";
import { DirectiveData } from "./directives";
export declare function readTypeScriptFile(typeScriptFileName: FileName): Either<TcatError[], TypeScriptContents>;
export declare function validateDirectiveDataJson(possibleDirectiveData: any): Either<TcatError[], DirectiveData[]>;
export declare function readDirectiveDataFile(directiveFileName: FileName): Either<TcatError[], DirectiveData[]>;
export declare function findLongestCommonPath(fileNames: FileName[]): string;
export declare type FileFilter = (fileName: string) => boolean;
export declare function walk(dir: DirectoryName, filter: FileFilter): FileName[];