docs: add detect intent with sentiment analysis snippet

.kokoro/test-samples-impl.sh

@@ -33,7 +33,7 @@ export PYTHONUNBUFFERED=1
 env | grep KOKORO
 
 # Install nox
-python3.6 -m pip install --upgrade --quiet nox
+python3.9 -m pip install --upgrade --quiet nox
 
 # Use secrets acessor service account to get secrets
 if [[ -f "${KOKORO_GFILE_DIR}/secrets_viewer_service_account.json" ]]; then
@@ -76,7 +76,7 @@ for file in samples/**/requirements.txt; do
     echo "------------------------------------------------------------"
 
     # Use nox to execute the tests for the project.
-    python3.6 -m nox -s "$RUN_TESTS_SESSION"
+    python3.9 -m nox -s "$RUN_TESTS_SESSION"
     EXIT=$?
 
     # If this is a periodic build, send the test log to the FlakyBot.

samples/snippets/detect_intent_with_sentiment_analysis.py

@@ -0,0 +1,91 @@
+#!/usr/bin/env python
+
+# Copyright 2022 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
+#
+#      http://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.
+
+"""DialogFlow Detect Intent Python sample, text input and sentiment analysis."""
+
+
+# [START dialogflow_cx_v3_detect_intent_sentiment_analysis_async]
+import uuid
+
+from google.cloud.dialogflowcx_v3beta1.services.sessions import SessionsClient
+from google.cloud.dialogflowcx_v3beta1.types import session
+
+
+def run_sample():
+    # TODO(developer): Update these values when running the function
+    project_id = "YOUR-PROJECT-ID"
+    location = "YOUR-LOCATION-ID"
+    agent_id = "YOUR-AGENT-ID"
+    text = "Perfect!"
+    language_code = "en-us"
+
+    detect_intent_with_sentiment_analysis(
+        project_id,
+        location,
+        agent_id,
+        text,
+        language_code,
+    )
+
+
+def detect_intent_with_sentiment_analysis(
+    project_id,
+    location,
+    agent_id,
+    text,
+    language_code,
+):
+    """Returns the result of detect intent with sentiment analysis"""
+
+    client_options = None
+    if location != "global":
+        api_endpoint = f"{location}-dialogflow.googleapis.com:443"
+        print(f"API Endpoint: {api_endpoint}\n")
+        client_options = {"api_endpoint": api_endpoint}
+    session_client = SessionsClient(client_options=client_options)
+    session_id = str(uuid.uuid4())
+
+    session_path = session_client.session_path(
+        project=project_id,
+        location=location,
+        agent=agent_id,
+        session=session_id,
+    )
+
+    text_input = session.TextInput(text=text)
+    query_input = session.QueryInput(
+      text=text_input,
+      language_code=language_code
+    )
+    query_params = session.QueryParameters(
+      analyze_query_text_sentiment=True,
+    )
+    request = session.DetectIntentRequest(
+        session=session_path,
+        query_input=query_input,
+        query_params=query_params,
+    )
+
+    response = session_client.detect_intent(request=request)
+    score = response.query_result.sentiment_analysis_result.score
+    print('Sentiment Score: {score}')
+    return score
+
+# [END dialogflow_cx_v3_detect_intent_sentiment_analysis_async]
+
+
+if __name__ == "__main__":
+    run_sample()

samples/snippets/detect_intent_with_sentiment_analysis_test.py

@@ -0,0 +1,41 @@
+# Copyright 2022, 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
+#
+#    http://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.
+
+"""Tests for detect_intent_with_sentiment_analysis.py"""
+
+from __future__ import absolute_import
+
+import os
+
+from detect_intent_with_sentiment_analysis import detect_intent_with_sentiment_analysis
+import pytest
+
+
+PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")
+AGENT_ID = os.getenv("AGENT_ID")
+
+
+@pytest.mark.parametrize(
+    "text, expected_score_min, expected_score_max",
+    (['Perfect', .5, 1], ['I am not happy', -1, -.5])
+)
+def test_detect_intent_positive(text, expected_score_min, expected_score_max):
+
+    score = detect_intent_with_sentiment_analysis(
+        PROJECT_ID,
+        'global',
+        AGENT_ID,
+        text,
+        "en-us",
+    )
+    assert expected_score_min < score < expected_score_max