code: function pack(items) {
  		var data = arguments,
  			idx = 0,
  			buffer,
  			bufferSize = 0;
  
  		// Calculate buffer size
  		items = items.split('');
  		items.forEach(function(type) {
  			if (type == 'v') {
  				bufferSize += 2;
  			} else if (type == 'V' || type == 'l') {
  				bufferSize += 4;
  			}
  		});
  
  		// Fill buffer
  		buffer = new Buffer(bufferSize);
  		items.forEach(function(type, index) {
  			if (type == 'v') {
  				buffer.writeUInt16LE(data[index + 1], idx);
  				idx += 2;
  			} else if (type == 'V') {
  				buffer.writeUInt32LE(data[index + 1], idx);
  				idx += 4;
  			} else if (type == 'l') {
  				buffer.writeInt32LE(data[index + 1], idx);
  				idx += 4;
  			}
  		});
  
  		return buffer;
  	}
docs: Pack data in the buffer
  @function
  @param {array} items
  @return {string}