text: 'use strict';
  
  const fs = require('fs');
  const { readFile } = fs;
  
  fs.readFile = (...args) => {
    const path = args.shift();
    const callback = args.pop();
    const options = args.pop() || {};
    console.log(`Intercepted call: fs.readFile('${path}')`);
    return readFile(path, options, (err, data) => {
      if (err) console.error(err);
      else console.log(`Data received: ${data.length}`);
      callback(err, data);
    });
  };
  
  fs.readFile('./7-mixin.js', (err, data) => {
    console.log({ err, data });
  });
  