code: def test_create_cluster_deferrable(self, mock_get_conn):
      redshift_operator = RedshiftCreateClusterOperator(
          task_id="task_test",
          cluster_identifier="test-cluster",
          node_type="dc2.large",
          master_username="adminuser",
          master_user_password="Test123$",
          cluster_type="single-node",
          deferrable=True,
      )
  
      with pytest.raises(TaskDeferred):
          redshift_operator.execute(None)
  
imports: from __future__ import annotations
  from unittest import mock
  import boto3
  import pytest
  from airflow.exceptions import AirflowException, TaskDeferred
  from airflow.providers.amazon.aws.hooks.redshift_cluster import RedshiftHook
  from airflow.providers.amazon.aws.operators.redshift_cluster import RedshiftCreateClusterOperator, RedshiftCreateClusterSnapshotOperator, RedshiftDeleteClusterOperator, RedshiftDeleteClusterSnapshotOperator, RedshiftPauseClusterOperator, RedshiftResumeClusterOperator
  from airflow.providers.amazon.aws.triggers.redshift_cluster import RedshiftCreateClusterSnapshotTrigger, RedshiftDeleteClusterTrigger, RedshiftPauseClusterTrigger, RedshiftResumeClusterTrigger
label_desc: Use image node_id 4 for calling the TestRedshiftCreateClusterOperator obj's underlying member method code with example usage: obj.test_create_cluster_deferrable(mock_get_conn) without return types