import { DepGraph } from '@snyk/dep-graph';
import { PkgTree } from 'snyk-nodejs-lockfile-parser';
export declare function getFileContents(root: string, fileName: string): {
    content: string;
    fileName: string;
};
export declare function fileExists(root: string, fileName: string): boolean;
export declare function isResDepGraph(depRes: PkgTree | DepGraph): depRes is DepGraph;
export declare function normalizeFilePath(filePath: string): string;
export declare function isSubpath(subpath: string, parentPath: string): boolean;