如何使用存储的连接从google电子表格读取Airflow DAG

from airflow import DAG
from airflow.operators.python_operator import PythonOperator
import gspread
from oauth2client.service_account import ServiceAccountCredentials

def read_airflow_dag():
    # 使用存储的连接从Google电子表格读取数据
    scope = ['https://spreadsheets.google.com/feeds', 'https://www.googleapis.com/auth/drive']
    credentials = ServiceAccountCredentials.from_json_keyfile_name('/path/to/credentials.json', scope)
    client = gspread.authorize(credentials)
    spreadsheet = client.open('Google Spreadsheet Name')
    worksheet = spreadsheet.get_worksheet(0)  # 假设工作表索引为0
    data = worksheet.get_all_values()
    
    # 处理读取到的数据
    for row in data:
        # 在这里可以根据需要进行相应的操作，如创建任务、设置依赖关系等
    
dag = DAG('read_airflow_dag', description='Read Airflow DAG from Google Spreadsheet', schedule_interval=None)

task = PythonOperator(
    task_id='read_airflow_dag_task',
    python_callable=read_airflow_dag,
    dag=dag
)