In the class given below, which line is the destructor?

class SleepSheep:

x $=0$

def $\_\_$init$\_\_($self$)$:

print$(\text{'}$Count on us to put you to sleep'$)$

def sleep$($self$)$:

self.x $=$ self.x $+1$

print$(\text{'}$Sheep$\text{'},$self.x$)$

def $\_\_$del$\_\_($self$)$:

print$(\text{'}$Sleeping person after $\text{'},$ self.x$,\text{'}$ sheep'$)$