var FormatterStream = require('formatter-stream');
 
var stream = new FormatterStream(':author wrote ":book"');
 
stream.on('data', function (data) {
    data.toString() === 'Arthur Conan Doyle wrote "Sherlock Holmes"'; // true
});
 
stream.write({
    author: 'Arthur Conan Doyle',
    book: 'Sherlock Holmes'
});
 
stream.end();