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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 state_name(self):
 """Get a human-readable value of the state Returns: str: Name of the current state """

        if self.state == 1:
            return 'New Issue'

        elif self.state == 2:
            return 'Shutdown in 1 week'

        elif self.state == 3:
            return 'Shutdown in 1 day'

        elif self.state == 4:
            return 'Pending Shutdown'

        elif self.state == 5:
            return 'Stopped, delete in 12 weeks'

        elif self.state == 6:
            return 'Instance deleted'

        else:
            raise ValueError('Invalid state: {}'.format(self.state))