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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 new_scope(self, new_scope={}):
 """Add a new innermost scope for the duration of the with block. Args: new_scope (dict-like):
 The scope to add. """

        old_scopes, self.scopes = self.scopes, self.scopes.new_child(new_scope)
        yield
        self.scopes = old_scopes