Nodejs creación de stream tipo read

nodejs_create_readable_stream.js

const Stream = require('stream');
const readableStream = new Stream.Readable();

readableStream.push('Hola');
readableStream.push(' ');
readableStream.push('Mundo');
readableStream.push(null);

async function getContentReadStream(readable) {
  for await (const chunk of readable) {
    console.log(chunk);
    console.log(chunk.toString());
  }
}

getContentReadStream(readableStream);
// <Buffer 48 6f 6c 61 20 4d 75 6e 64 6f>
// Hola Mundo