kaxil commented on a change in pull request #8992:
URL: https://github.com/apache/airflow/pull/8992#discussion_r443552728
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File path: tests/ti_deps/deps/test_trigger_rule_dep.py
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@@ -19,13 +19,13 @@
import unittest
from datetime import datetime
+from unittest.mock import Mock
from airflow.models import BaseOperator, TaskInstance
from airflow.utils.trigger_rule import TriggerRule
from airflow.ti_deps.deps.trigger_rule_dep import TriggerRuleDep
from airflow.utils.db import create_session
from airflow.utils.state import State
Review comment:
```suggestion
from airflow.models import BaseOperator, TaskInstance
from airflow.utils.trigger_rule import TriggerRule
from airflow.ti_deps.deps.trigger_rule_dep import TriggerRuleDep
from airflow.utils.db import create_session
from airflow.utils.state import State
from tests.compat import Mock
```
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