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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 remove(self):
 """Remove recursively all children and then the StateView itself """

        self.canvas.get_first_view().unselect_item(self)

        for child in self.canvas.get_children(self)[:]:
            child.remove()

        self.remove_income()
        for outcome_v in self.outcomes[:]:
            self.remove_outcome(outcome_v)
        for input_port_v in self.inputs[:]:
            self.remove_input_port(input_port_v)
        for output_port_v in self.outputs[:]:
            self.remove_output_port(output_port_v)
        for scoped_variable_port_v in self.scoped_variables[:]:
            self.remove_scoped_variable(scoped_variable_port_v)

        self.remove_keep_rect_within_constraint_from_parent()
        for constraint in self._constraints[:]:
            self.canvas.solver.remove_constraint(constraint)
            self._constraints.remove(constraint)
        self.canvas.remove(self)