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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 get_user( self, identified_with, identifier, req, resp, resource, uri_kwargs ):
 """Get user object for given identifier. Args: identified_with (object):
 authentication middleware used to identify the user. identifier: middleware specifix user identifier (string or tuple in case of all built in authentication middleware classes). Returns: dict: user object stored in Redis if it exists, otherwise ``None`` """

        stored_value = self.kv_store.get(
            self._get_storage_key(identified_with, identifier)
        )
        if stored_value is not None:
            user = self.serialization.loads(stored_value.decode())
        else:
            user = None

        return user