<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
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<USER_TASK:>
Description:
 def create(self, username, password, tags=''):
 """Create User. :param str username: Username :param str password: Password :param str tags: Comma-separate list of tags (e.g. monitoring) :rtype: None """

        user_payload = json.dumps({
            'password': password,
            'tags': tags
        })
        return self.http_client.put(API_USER % username,
                                    payload=user_payload)