chore: import upstream snapshot with attribution

tests/deployments/test_interface.py

@@ -0,0 +1,32 @@
+import pytest
+
+import mlflow.deployments.utils
+from mlflow.deployments.interface import get_deploy_client
+
+mlflow.deployments.utils._deployments_target = None
+
+
+def test_get_deploy_client_no_args():
+    mlflow.deployments.utils._deployments_target = None
+    assert get_deploy_client() is None
+
+
+def test_get_deploy_client_none():
+    mlflow.deployments.utils._deployments_target = None
+    assert get_deploy_client(None) is None
+
+
+def test_get_deploy_client_from_set_deployments_target():
+    from mlflow.deployments import set_deployments_target
+
+    set_deployments_target("databricks")
+    assert get_deploy_client(None) is not None
+
+
+@pytest.fixture
+def set_deployment_envs(monkeypatch):
+    monkeypatch.setenv("MLFLOW_DEPLOYMENTS_TARGET", "databricks")
+
+
+def test_get_deploy_client_from_env(set_deployment_envs):
+    assert get_deploy_client(None) is not None