export {}; import * as webstreams from "stream/web"; type _CompressionStream = typeof globalThis extends { onmessage: any } ? {} : webstreams.CompressionStream; type _DecompressionStream = typeof globalThis extends { onmessage: any } ? {} : webstreams.DecompressionStream; declare global { interface CompressionStream extends _CompressionStream {} var CompressionStream: typeof globalThis extends { onmessage: any; CompressionStream: infer T; } ? T : typeof webstreams.CompressionStream; interface DecompressionStream extends _DecompressionStream {} var DecompressionStream: typeof globalThis extends { onmessage: any; DecompressionStream: infer T; } ? T : typeof webstreams.DecompressionStream; }