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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 visit_AugAssign(self, node):
 """ AugAssigned value depend on r-value type dependencies. It is valid for subscript, `a[i] += foo()` means `a` type depend on `foo` return type and previous a types too. """

        args = (self.naming[get_variable(node.target).id],
                self.visit(node.value))
        merge_dep = list({frozenset.union(*x)
                          for x in itertools.product(*args)})
        self.naming[get_variable(node.target).id] = merge_dep