<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def set_values(self,x):
 """ Updates self.theta parameter. No returns values"""


        x = numpy.atleast_2d(x)

        x = x.real # ahem

        C_inv = self.__C_inv__
        theta = numpy.dot( x, C_inv )
        self.theta = theta

        return theta