chromium/src/third_party/blink/renderer/modules/compression/decompression_stream.idl

[
    Exposed=(Window,Worker)
] interface DecompressionStream {
    [CallWith=ScriptState, RaisesException, MeasureAs=DecompressionStreamConstructor] constructor(DOMString format);
    readonly attribute ReadableStream readable;
    readonly attribute WritableStream writable;
};