code: def mount(cls, mount_point, lower_dir, upper_dir, mount_table=None):
          
          ensure_directories(mount_point, lower_dir, upper_dir)
          # Load the mount table if it isn't given
          if not mount_table:
              mount_table = MountTable.load()
          # Check if the mount_point is in use
          if mount_table.is_mounted(mount_point):
              # Throw an error if it is
              raise AlreadyMounted()
          # Build mount options
          options = "rw,lowerdir=%s,upperdir=%s" % (lower_dir, upper_dir)
          # Run the actual mount
          subwrap.run(['mount', '-t', 'overlayfs', '-o', options,
              'olyfs%s' % random_name(), mount_point])
          return cls(mount_point, lower_dir, upper_dir)
docs: Execute the mount. This requires root