@opra/common/helpers/type-guards.d.ts

Opra common package

import { Readable, Stream } from 'stream';
export declare function isStream(x: any): x is Stream;
export declare function isReadable(x: any): x is Readable;
export declare function isWritable(x: any): x is Readable;
export declare function isReadableStream(x: any): x is ReadableStream;
export declare function isBlob(x: any): x is Blob;
export declare function isFormData(x: any): x is FormData;
export declare function isURL(x: any): x is URL;