code: def _create_defaults(self):
      defu_ = {
          "owner": get_username(),
          # If set on a task and the previous run of the task has failed,
          # it will not run the task in the current DAG run.
          "depends_on_past": False,
          # TODO: Enable emails
          "execution_timeout": timedelta(days=5),
          "retry_delay": timedelta(seconds=200),
          # check https://airflow.apache.org/docs/apache-airflow/stable/_api/airflow/models/baseoperator/index.html?highlight=retry_delay#airflow.models.baseoperator.BaseOperatorMeta
      }
      if self.worker_pool is not None:
          defu_["pool"] = self.worker_pool
  
      return defu_
  
imports: import json
  import os
  import random
  import string
  import sys
  from datetime import datetime, timedelta
  from io import BytesIO
  import metaflow.util
  from metaflow import current
  from metaflow.decorators import flow_decorators
  from metaflow.exception import MetaflowException
  from metaflow.includefile import FilePathClass
  from metaflow.metaflow_config import AIRFLOW_KUBERNETES_CONN_ID, AIRFLOW_KUBERNETES_KUBECONFIG_CONTEXT, AIRFLOW_KUBERNETES_KUBECONFIG_FILE, AIRFLOW_KUBERNETES_STARTUP_TIMEOUT_SECONDS, AWS_SECRETS_MANAGER_DEFAULT_REGION, AZURE_STORAGE_BLOB_SERVICE_ENDPOINT, CARD_AZUREROOT, CARD_GSROOT, CARD_S3ROOT, DATASTORE_SYSROOT_AZURE, DATASTORE_SYSROOT_GS, DATASTORE_SYSROOT_S3, DATATOOLS_S3ROOT, DEFAULT_SECRETS_BACKEND_TYPE, KUBERNETES_SECRETS, KUBERNETES_SERVICE_ACCOUNT, S3_ENDPOINT_URL, SERVICE_HEADERS, SERVICE_INTERNAL_URL
  from metaflow.metaflow_config_funcs import config_values
  from metaflow.parameters import DelayedEvaluationParameter, JSONTypeClass, deploy_time_eval
  from metaflow.plugins.cards.card_modules import chevron
  from metaflow.plugins.kubernetes.kubernetes import Kubernetes
  from metaflow.plugins.timeout_decorator import get_run_time_limit_for_task
  from metaflow.util import compress_list, dict_to_cli_options, get_username
  from .None import airflow_utils
  from .airflow_utils import AIRFLOW_MACROS, TASK_ID_XCOM_KEY, AirflowTask, Workflow
  from .exception import AirflowException
  from .sensors import SUPPORTED_SENSORS
label_desc: Use image node_id 18 for calling the Airflow obj's underlying member method code with example usage: obj._create_defaults() and returns: defu_