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node_modules/pino/test/fixtures/transport-worker-data.js

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+'use strict'
+
+const { parentPort, workerData } = require('worker_threads')
+const { Writable } = require('node:stream')
+
+module.exports = (options) => {
+  const myTransportStream = new Writable({
+    autoDestroy: true,
+    write (chunk, enc, cb) {
+      parentPort.postMessage({
+        code: 'EVENT',
+        name: 'workerData',
+        args: [workerData]
+      })
+      cb()
+    }
+  })
+  return myTransportStream
+}