code: def umount(self, forced=True):
          
          if self.is_mounted():
              if is_osx():
                  cmd = ["/usr/sbin/diskutil", "unmount",
                         self.connection["mount_point"]]
                  if forced:
                      cmd.insert(2, "force")
                  subprocess.check_call(cmd)
              else:
                  cmd = ["umount", self.connection["mount_point"]]
                  if forced:
                      cmd.insert(1, "-f")
                  subprocess.check_call(cmd)
docs: Try to unmount our mount point.
  
          Defaults to using forced method. If OS is Linux, it will not
          delete the mount point.
  
          Args:
              forced: Bool whether to force the unmount. Default is True.