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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 simplify(self, e=None):
 """ Simplifies `e`. If `e` is None, simplifies the constraints of this state. """

        if e is None:
            return self._solver.simplify()
        elif isinstance(e, (int, float, bool)):
            return e
        elif isinstance(e, claripy.ast.Base) and e.op in claripy.operations.leaf_operations_concrete:
            return e
        elif isinstance(e, SimActionObject) and e.op in claripy.operations.leaf_operations_concrete:
            return e.ast
        elif not isinstance(e, (SimActionObject, claripy.ast.Base)):
            return e
        else:
            return self._claripy_simplify(e)