old_contents: /* eslint camelcase: 0 */
  //                   ^^---- for ignoring Jupyter JSON, like msg_id
  
  global.enchannelZMQ = require('../src');
  const uuid = require('uuid');
  global.uuid = uuid;
  
  (() => {
    const chalk = require('chalk');
    const util = require('util');
  
    // Quick helper functions
    const codeLog = (s) => console.log(chalk.white(chalk.bgBlack(s)));
    const insp = o => util.inspect(o, { colors: true });
  
    codeLog('\nconsole.log(enchannelZMQ)');
    console.log(insp(global.enchannelZMQ));
  
    console.log(chalk.green('\nHINT: ') + chalk.white('var enchan = enchannelZMQ(require(\'./kernel.json\'))\n'));
  
    const message = {
      header: {
        msg_id: `execute_${uuid.v4()}`,
        username: '',
        session: '00000000-0000-0000-0000-000000000000',
        msg_type: 'execute_request',
        version: '5.0',
      },
      content: {
        code: 'print("woo")',
        silent: false,
        store_history: true,
        user_expressions: {},
        allow_stdin: false,
      },
    };
  
    console.log('var payload = ');
    console.log(message);
    console.log('\n      ' + chalk.white('enchan.io.subscribe(console.log)'));
    console.log('\n      ' + chalk.white('enchan.shell.subscribe(console.log)'));
    console.log('\n      ' + chalk.white('enchan.shell.send(payload)'));
  
  })();
  
  require('repl').start('> ');
  
new_contents: /* eslint camelcase: 0 */
  //                   ^^---- for ignoring Jupyter JSON, like msg_id
  
  global.enchannelZMQ = require('../src');
  const uuid = require('uuid');
  global.uuid = uuid;
  
  (() => {
    const chalk = require('chalk');
    const util = require('util');
  
    // Quick helper functions
    const codeLog = (s) => console.log(chalk.white(chalk.bgBlack(s)));
    const insp = o => util.inspect(o, { colors: true });
  
    codeLog('\nconsole.log(enchannelZMQ)');
    console.log(insp(global.enchannelZMQ));
  
    console.log(chalk.green('\nHINT: ') + chalk.white('var enchan = enchannelZMQ(require(\'./kernel.json\'))\n'));
  
    const message = {
      header: {
        msg_id: `execute_${uuid.v4()}`,
        username: '',
        session: '00000000-0000-0000-0000-000000000000',
        msg_type: 'execute_request',
        version: '5.0',
      },
      content: {
        code: 'print("woo")',
        silent: false,
        store_history: true,
        user_expressions: {},
        allow_stdin: false,
      },
    };
  
    console.log('var payload = ');
    console.log(message);
    console.log('\n      ' + chalk.white('enchan.iopub.subscribe(console.log)'));
    console.log('\n      ' + chalk.white('enchan.shell.subscribe(console.log)'));
    console.log('\n      ' + chalk.white('enchan.shell.send(payload)'));
  
  })();
  
  require('repl').start('> ');
  
subject: Update script in repl suggest.