Python: [BREAKING] Renamed create_agent to as_agent (#3249)

* Renamed create_agent to as_agent

* Override for as_agent

* Added override

python/samples/getting_started/workflows/tool-approval/concurrent_builder_tool_approval.py

@@ -104,7 +104,7 @@ async def main() -> None:
     # 3. Create two agents focused on different stocks but with the same tool sets
     chat_client = OpenAIChatClient()
 
-    microsoft_agent = chat_client.create_agent(
+    microsoft_agent = chat_client.as_agent(
         name="MicrosoftAgent",
         instructions=(
             "You are a personal trading assistant focused on Microsoft (MSFT). "
@@ -113,7 +113,7 @@ async def main() -> None:
         tools=[get_stock_price, get_market_sentiment, get_portfolio_balance, execute_trade],
     )
 
-    google_agent = chat_client.create_agent(
+    google_agent = chat_client.as_agent(
         name="GoogleAgent",
         instructions=(
             "You are a personal trading assistant focused on Google (GOOGL). "

python/samples/getting_started/workflows/tool-approval/group_chat_builder_tool_approval.py

@@ -96,7 +96,7 @@ async def main() -> None:
     # 3. Create specialized agents
     chat_client = OpenAIChatClient()
 
-    qa_engineer = chat_client.create_agent(
+    qa_engineer = chat_client.as_agent(
         name="QAEngineer",
         instructions=(
             "You are a QA engineer responsible for running tests before deployment. "
@@ -105,7 +105,7 @@ async def main() -> None:
         tools=[run_tests],
     )
 
-    devops_engineer = chat_client.create_agent(
+    devops_engineer = chat_client.as_agent(
         name="DevOpsEngineer",
         instructions=(
             "You are a DevOps engineer responsible for deployments. First check staging "

python/samples/getting_started/workflows/tool-approval/sequential_builder_tool_approval.py

@@ -67,7 +67,7 @@ def get_database_schema() -> str:
 async def main() -> None:
     # 2. Create the agent with tools (approval mode is set per-tool via decorator)
     chat_client = OpenAIChatClient()
-    database_agent = chat_client.create_agent(
+    database_agent = chat_client.as_agent(
         name="DatabaseAgent",
         instructions=(
             "You are a database assistant. You can view the database schema and execute "