Range parameters require the use of `array_type_2` in Python
It would be more convenient to use Python lists and/or tuples
For instance r = d_range_real("range", [0., 1.], 0., 1.)
instead of r = d_range_real("range", array_real_2([0., 1.]), 0., 1.)
And r.setBounds((-1., 1))
instead of r.setBounds(array_real_2([-1., 1.]))