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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 draw_variables(self):
 """ Draw parameters from the approximating distributions """
        
        z = self.q[0].draw_variable_local(self.sims)
        for i in range(1,len(self.q)):
            z = np.vstack((z,self.q[i].draw_variable_local(self.sims)))
        return z