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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def steal(self, instr):
 """Steal the jump index off of `instr`. This makes anything that would have jumped to `instr` jump to this Instruction instead. Parameters instr : Instruction The instruction to steal the jump sources from. Returns ------- self : Instruction The instruction that owns this method. Notes ----- This mutates self and ``instr`` inplace. """

        instr._stolen_by = self
        for jmp in instr._target_of:
            jmp.arg = self
        self._target_of = instr._target_of
        instr._target_of = set()
        return self