Args:
            folder (str | unicode | None): Optional custom mount folder (defaults to /mnt/props on Linux, and /Volumes/props on OSX)
            front (bool): If True, add provider to front of list

def use_propsfs(self, folder=None, front=False):
        """
        Args:
            folder (str | unicode | None): Optional custom mount folder (defaults to /mnt/props on Linux, and /Volumes/props on OSX)
            front (bool): If True, add provider to front of list
        """
        if folder is None:
            folder = "/%s/props" % ("Volumes" if platform.system().lower() == "darwin" else "mnt")
        self.add(PropsfsProvider(folder), front=front)