Python: Telemetry and observability follow-up (#833)

* updated telemetry work

* updated telemetry

* slight improvement

* updated tests

* fixes for telemetry

* fixes for mypy

* added settings setup to runner to avoid error

* streamline usage

* updated tests

* updated tests

* further refinement

* fix dumped item for otel

* removed enable_workflow_otel

* final fixes

* final fixes

* updated samples

* removed exporters

* fix tests

* fixed last import'

* fixed devui

python/samples/getting_started/observability/03a-agent.py

@@ -0,0 +1,56 @@
+# Copyright (c) Microsoft. All rights reserved.
+# type: ignore
+import asyncio
+from random import randint
+from typing import Annotated
+
+from agent_framework import ChatAgent
+from agent_framework.observability import get_tracer, setup_observability
+from agent_framework.openai import OpenAIChatClient
+from opentelemetry.trace import SpanKind
+from pydantic import Field
+
+"""
+This sample shows you can can setup telemetry with a agent.
+The agent invoke is a additional Semantic Convention that now
+will wrap the calls made by the underlying chat client and tools.
+"""
+
+
+async def get_weather(
+    location: Annotated[str, Field(description="The location to get the weather for.")],
+) -> str:
+    """Get the weather for a given location."""
+    await asyncio.sleep(randint(0, 10) / 10.0)  # Simulate a network call
+    conditions = ["sunny", "cloudy", "rainy", "stormy"]
+    return f"The weather in {location} is {conditions[randint(0, 3)]} with a high of {randint(10, 30)}°C."
+
+
+async def main():
+    # Set up the telemetry
+
+    questions = ["What's the weather in Amsterdam?", "and in Paris, and which is better?", "Why is the sky blue?"]
+    setup_observability()
+    with get_tracer().start_as_current_span("Scenario: Agent Chat", kind=SpanKind.CLIENT):
+        print("Running scenario: Agent Chat")
+        print("Welcome to the chat, type 'exit' to quit.")
+        agent = ChatAgent(
+            chat_client=OpenAIChatClient(),
+            tools=get_weather,
+            name="WeatherAgent",
+            instructions="You are a weather assistant.",
+        )
+        thread = agent.get_new_thread()
+        for question in questions:
+            print(f"User: {question}")
+            print(f"{agent.display_name}: ", end="")
+            async for update in agent.run_stream(
+                question,
+                thread=thread,
+            ):
+                if update.text:
+                    print(update.text, end="")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())