fix: fix update export model sample, and add sample test

.sample_configs/param_handlers/export_model_sample.py

@@ -23,7 +23,9 @@ def make_output_config(gcs_destination_output_uri_prefix: str) -> google.cloud.a
     output_config = {
         'artifact_destination': {
             'output_uri_prefix': gcs_destination_output_uri_prefix
-        }
+        },
+        # For information about export formats: https://cloud.google.com/ai-platform-unified/docs/export/export-edge-model#aiplatform_export_model_sample-drest
+        'export_format_id': 'tf-saved-model'
     }
 
     return output_config

samples/snippets/export_model_sample.py

@@ -30,7 +30,11 @@ def export_model_sample(
     # This client only needs to be created once, and can be reused for multiple requests.
     client = aiplatform.gapic.ModelServiceClient(client_options=client_options)
     output_config = {
-        "artifact_destination": {"output_uri_prefix": gcs_destination_output_uri_prefix}
+        "artifact_destination": {
+            "output_uri_prefix": gcs_destination_output_uri_prefix
+        },
+        # For information about export formats: https://cloud.google.com/ai-platform-unified/docs/export/export-edge-model#aiplatform_export_model_sample-drest
+        "export_format_id": "tf-saved-model",
     }
     name = client.model_path(project=project, location=location, model=model_id)
     response = client.export_model(name=name, output_config=output_config)

samples/snippets/export_model_sample_test.py

@@ -0,0 +1,47 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+
+import pytest
+
+import export_model_sample
+
+PROJECT_ID = os.getenv("BUILD_SPECIFIC_GCLOUD_PROJECT")
+MODEL_ID = (
+    "3422489426196955136"  # permanent_swim_run_videos_action_recognition_edge_model
+)
+GCS_URI = (
+    "gs://ucaip-samples-test-output/tmp/export_model_sample"
+)
+
+
+@pytest.fixture(scope="function", autouse=True)
+def teardown(storage_client):
+    yield
+
+    bucket = storage_client.get_bucket("ucaip-samples-test-output")
+    blobs = bucket.list_blobs(prefix="tmp/export_model_sample")
+    for blob in blobs:
+        blob.delete()
+
+
+def test_export_model_sample(capsys):
+    export_model_sample.export_model_sample(
+        project=PROJECT_ID,
+        model_id=MODEL_ID,
+        gcs_destination_output_uri_prefix=GCS_URI
+    )
+    out, _ = capsys.readouterr()
+    assert "output_info" in out