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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 fill_predictive_missing_parameters(self):
 """define state with initial_state :return: None """

        if self.initial_state == 'w':
            self.state = u'WARNING'
        elif self.initial_state == 'u':
            self.state = u'UNKNOWN'
        elif self.initial_state == 'c':
            self.state = u'CRITICAL'
        elif self.initial_state == 'x':
            self.state = u'UNREACHABLE'