docs: function generator(url) {
  	var randomnesss = Crypto.randomBytes(24);
  	randomnesss.writeDoubleBE(Date.now(), 0);
  	randomnesss.writeUInt32BE(process.pid, 8);
  
  	var output = randomnesss.toString('base64');
  
  	// URL safe
  	if (url) {
  		output = output.replace(/\//g, '_');
  		output = output.replace(/\+/g, '-');
  	}
  
  	return output;
  }