我是azure databricks的初学者，我想使用API在python中创建集群和提交作业。我被卡住了，因为我做不到。另外，如果我有一个现有的集群，代码会是什么样子？运行此代码后，我获得了作业id，但无法看到任何输出。

import requests
DOMAIN = ''
TOKEN = ''
response = requests.post(
  'https://%s/api/2.0/jobs/create' % (DOMAIN),
  headers={'Authorization': 'Bearer %s' % TOKEN},
  json={
       "name": "SparkPi spark-submit job",
       "new_cluster": {
       "spark_version": "7.3.x-scala2.12",
       "node_type_id": "Standard_DS3_v2",
       "num_workers": 2
       },
       "spark_submit_task": {
       "parameters": [
           "--class",
            "org.apache.spark.examples.SparkPi",
            "dbfs:/FileStore/sparkpi_assembly_0_1.jar",
            "10"
            ]
        }
    }
)
if response.status_code == 200:
  print(response.json())
else:
  print("Error launching cluster: %s: %s" % (response.json()["error_code"], response.json()["message"]))