export declare const isBrowser: boolean; export declare const isNode: boolean; export declare const isWebWorker: boolean; export declare const isJsDom: boolean; export declare const isReactNative: boolean; export declare const isElectron: boolean; export declare function randomFromRange(min: number, max: number, notIn: number[]): Promise; export declare function toBlob(data: Uint8Array): Promise; export declare function blobToHexString(blob: Blob): Promise; //# sourceMappingURL=helpers.d.ts.map