feat(genai): Add Sample for Multimodal Live API (#13159)

* feat(genai): Add Sample for Multimodal Live API

* Update genai/live/live_with_txt.py

Co-authored-by: Sampath Kumar <sampathm@google.com>

* Update genai/live/live_with_txt.py

Co-authored-by: Sampath Kumar <sampathm@google.com>

---------

Co-authored-by: Sampath Kumar <sampathm@google.com>

Author: holtskinner

genai/live/live_with_txt.py

@@ -0,0 +1,51 @@
+# Copyright 2025 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 asyncio
+
+
+async def generate_content() -> list[str]:
+    # [START googlegenaisdk_live_with_txt]
+    from google import genai
+    from google.genai.types import LiveConnectConfig, HttpOptions, Modality
+
+    client = genai.Client(http_options=HttpOptions(api_version="v1beta1"))
+    model_id = "gemini-2.0-flash-exp"
+
+    async with client.aio.live.connect(
+        model=model_id,
+        config=LiveConnectConfig(response_modalities=[Modality.TEXT]),
+    ) as session:
+        text_input = "Hello? Gemini, are you there?"
+        print("> ", text_input, "\n")
+        await session.send(input=text_input, end_of_turn=True)
+
+        response = []
+
+        async for message in session.receive():
+            if message.text:
+                response.append(message.text)
+
+        print("".join(response))
+    # Example output:
+    # >  Hello? Gemini, are you there?
+
+    # Yes, I'm here. What would you like to talk about?
+
+    # [END googlegenaisdk_live_with_txt]
+    return response
+
+
+if __name__ == "__main__":
+    asyncio.run(generate_content())

genai/live/noxfile_config.py

@@ -0,0 +1,42 @@
+# Copyright 2021 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.
+
+# Default TEST_CONFIG_OVERRIDE for python repos.
+
+# You can copy this file into your directory, then it will be imported from
+# the noxfile.py.
+
+# The source of truth:
+# https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/noxfile_config.py
+
+TEST_CONFIG_OVERRIDE = {
+    # You can opt out from the test for specific Python versions.
+    "ignored_versions": ["2.7", "3.7", "3.8", "3.10", "3.11", "3.12"],
+    # Old samples are opted out of enforcing Python type hints
+    # All new samples should feature them
+    "enforce_type_hints": True,
+    # An envvar key for determining the project id to use. Change it
+    # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
+    # build specific Cloud project. You can also use your own string
+    # to use your own Cloud project.
+    "gcloud_project_env": "GOOGLE_CLOUD_PROJECT",
+    # 'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
+    # If you need to use a specific version of pip,
+    # change pip_version_override to the string representation
+    # of the version number, for example, "20.2.4"
+    "pip_version_override": None,
+    # A dictionary you want to inject into your test. Don't put any
+    # secrets here. These values will override predefined values.
+    "envs": {},
+}

genai/live/requirements-test.txt

@@ -0,0 +1,4 @@
+backoff==2.2.1
+google-api-core==2.19.0
+pytest==8.2.0
+pytest-asyncio==0.25.3

genai/live/requirements.txt

@@ -0,0 +1 @@
+google-genai==1.2.0

genai/live/test_live_samples.py

@@ -0,0 +1,33 @@
+# Copyright 2025 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.
+
+#
+# Using Google Cloud Vertex AI to test the code samples.
+#
+
+import os
+
+import pytest
+
+import live_with_txt
+
+os.environ["GOOGLE_GENAI_USE_VERTEXAI"] = "True"
+os.environ["GOOGLE_CLOUD_LOCATION"] = "us-central1"
+# The project name is included in the CICD pipeline
+# os.environ['GOOGLE_CLOUD_PROJECT'] = "add-your-project-name"
+
+
+@pytest.mark.asyncio
+async def test_live_with_text() -> None:
+    assert await live_with_txt.generate_content()