export declare function parseJson(jsonStr: string): any; export declare function once any>(fn: T, ctx?: unknown): T; export declare const runByHBuilderX: () => boolean; export declare const isInHBuilderX: () => boolean; export declare function resolveSourceMapPath(outputDir?: string, platform?: UniApp.PLATFORM): string; export declare const isWindows: boolean; export declare function normalizePath(id: string): string; export declare function installHBuilderXPlugin(plugin: string): void;