refactor(genai): Update docs, filename and comments

* update template folder examples

Author: msampathkumar

genai/template_folder/requirements.txt

@@ -1 +1 @@
-# google-genai==1.2.0
+google-genai==1.2.0

genai/template_folder/templatefolder_with_txt.py

@@ -13,29 +13,25 @@
 # limitations under the License.
 
 
-def simple_example() -> int:
-    "Simple example for <template_folder> feature."
-    # TODO: <ADD-START-REGION-TAG-HERE>
-    from vertexai.preview.tokenization import get_tokenizer_for_model
-
-    # Using local tokenzier
-    tokenizer = get_tokenizer_for_model("gemini-1.5-flash-002")
-
-    prompt = "hello world"
-    response = tokenizer.count_tokens(prompt)
-    print(f"Prompt Token Count: {response.total_tokens}")
+def generate_content() -> str:
+    # [START googlegenaisdk_TEMPLATEFOLDER_with_txt]
+    from google import genai
+    from google.genai.types import HttpOptions
+
+    client = genai.Client(http_options=HttpOptions(api_version="v1"))
+    response = client.models.generate_content(
+        model="gemini-2.0-flash-001",
+        contents="How does AI work?",
+    )
+    print(response.text)
     # Example response:
-    # Prompt Token Count: 2
-
-    prompt = ["hello world", "what's the weather today"]
-    response = tokenizer.count_tokens(prompt)
-    print(f"Prompt Token Count: {response.total_tokens}")
-    # Example response:
-    # Prompt Token Count: 8
-
-    # TODO: <ADD-START-REGION-TAG-HERE>
-    return response.total_tokens
+    # Okay, let's break down how AI works. It's a broad field, so I'll focus on the ...
+    #
+    # Here's a simplified overview:
+    # ...
+    # [END googlegenaisdk_TEMPLATEFOLDER_with_txt]
+    return response.text
 
 
 if __name__ == "__main__":
-    simple_example()
+    generate_content()

genai/template_folder/test_templatefolder_examples.py

@@ -11,14 +11,15 @@
 # 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 templatefolder_with_txt
 
-
-def test_templatefolder_with_txt() -> None:
-    assert response
+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"
 
 
-def test_advanced_example() -> None:
-    response = advanced_example.advanced_example()
-    assert response
+def test_templatefolder_with_txt() -> None:
+    assert templatefolder_with_txt.generate_content()