In response to the comment it prints:
Gunzip {
_writeState: Uint32Array(2) [ 0, 0 ],
_readableState: ReadableState {
objectMode: false,
highWaterMark: 16384,
buffer: BufferList { head: null, tail: null, length: 0 },
length: 0,
pipes: null,
pipesCount: 0,
flowing: null,
ended: false,
endEmitted: false,
reading: false,
sync: false,
needReadable: false,
emittedReadable: false,
readableListening: false,
resumeScheduled: false,
emitClose: true,
autoDestroy: false,
destroyed: false,
defaultEncoding: 'utf8',
awaitDrainWriters: null,
multiAwaitDrain: false,
readingMore: false,
decoder: null,
encoding: null,
[Symbol(kPaused)]: null
},
readable: true,
_events: [Object: null prototype] {
prefinish: [Function: prefinish],
end: [Function: bound onceWrapper] { listener: [Function: bound _close] },
unpipe: [Function: onunpipe],
error: [ [Function: onerror], [Function] ],
close: [Function: bound onceWrapper] { listener: [Function: onclose] },
finish: [Function: bound onceWrapper] { listener: [Function: onfinish] }
},
_eventsCount: 6,
_maxListeners: undefined,
_writableState: WritableState {
objectMode: false,
highWaterMark: 16384,
finalCalled: false,
needDrain: false,
ending: false,
ended: false,
finished: false,
destroyed: false,
decodeStrings: true,
defaultEncoding: 'utf8',
length: 0,
writing: false,
corked: 0,
sync: true,
bufferProcessing: false,
onwrite: [Function: bound onwrite],
writecb: null,
writelen: 0,
afterWriteTickInfo: null,
bufferedRequest: null,
lastBufferedRequest: null,
pendingcb: 0,
prefinished: false,
errorEmitted: false,
emitClose: true,
autoDestroy: false,
bufferedRequestCount: 0,
corkedRequestsFree: {
next: null,
entry: null,
finish: [Function: bound onCorkedFinish]
}
},
writable: true,
allowHalfOpen: true,
_transformState: {
afterTransform: [Function: bound afterTransform],
needTransform: false,
transforming: false,
writecb: null,
writechunk: null,
writeencoding: null
},
_hadError: false,
bytesWritten: 0,
_handle: Zlib {
onerror: [Function: zlibOnError],
[Symbol(owner_symbol)]: [Circular]
},
_outBuffer: <Buffer 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ... 16334 more bytes>,
_outOffset: 0,
_chunkSize: 16384,
_defaultFlushFlag: 2,
_finishFlushFlag: 2,
_defaultFullFlushFlag: 3,
_info: undefined,
_level: -1,
_strategy: 0,
[Symbol(kCapture)]: false
}```