<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def noise_uniform(self, lower_bound, upper_bound):
 """Create a uniform noise variable"""

        assert upper_bound > lower_bound
        nu = self.sym.sym('nu_{:d}'.format(len(self.scope['nu'])))
        self.scope['nu'].append(nu)
        return lower_bound + nu*(upper_bound - lower_bound)