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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_annassign(self, node):
 """Return an astroid.AugAssign node as string"""


        target = node.target.accept(self)
        annotation = node.annotation.accept(self)
        if node.value is None:
            return "%s: %s" % (target, annotation)
        return "%s: %s = %s" % (target, annotation, node.value.accept(self))