code: def get_asset_url(self, path):
  		
  		url = self.root_url + '/assets/' + path
  		if path in self.asset_hash:
  			url += '?' + self.asset_hash[path]
  		return url
docs: Get the URL of an asset. If asset hashes are added and one exists for
  		the path, it will be appended as a query string.
  
  		Args:
  		  path (str): Path to the file, relative to your "assets" directory.