Fails on native functions, like Number or String (SOLUTION INCLUDED)

Steps to Reproduce:

const serializeJavaScript = require('serialize-javascript');

const input = {
  type: Number
};

const output = serializeJavaScript(input);

console.log(output);

Expected:

'{"type":Number}'

Actual:

Uncaught TypeError: Serializing native function: Number
    at serializeFunc (/node_modules/serialize-javascript/index.js:146:17)
    at /node_modules/serialize-javascript/index.js:266:16
    at String.replace (<anonymous>)
    at serialize (/node_modules/serialize-javascript/index.js:220:16)

Start at serialize-javascript/index.js, especially serializeFunc around line 146 and the replacement path around lines 220 and 266, then run the JavaScript reproduction from the issue. Done means serializing an object containing Number or String produces '{"type":Number}' rather than throwing a native-function TypeError.