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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 unsubscribe(self, subscription):
 """ Allows endpoint owner to delete subscription. Confirmation message will be delivered. :type subscription: string :param subscription: The ARN of the subscription to be deleted. """

        params = {'ContentType' : 'JSON',
                  'SubscriptionArn' : subscription}
        response = self.make_request('Unsubscribe', params, '/', 'GET')
        body = response.read()
        if response.status == 200:
            return json.loads(body)
        else:
            boto.log.error('%s %s' % (response.status, response.reason))
            boto.log.error('%s' % body)
            raise self.ResponseError(response.status, response.reason, body)