Python: [BREAKING] Standardize TypeVar naming convention (TName → NameT) (#3770)

* standardized typevar to use suffix T

* addressed copilot comments

python/samples/getting_started/chat_client/custom_chat_client.py

@@ -17,7 +17,7 @@ from agent_framework import (
     ResponseStream,
     Role,
 )
-from agent_framework._clients import TOptions_co
+from agent_framework._clients import OptionsCoT
 from agent_framework.observability import ChatTelemetryLayer
 
 if sys.version_info >= (3, 13):
@@ -38,7 +38,7 @@ middleware, telemetry, and function invocation layers explicitly.
 """
 
 
-class EchoingChatClient(BaseChatClient[TOptions_co], Generic[TOptions_co]):
+class EchoingChatClient(BaseChatClient[OptionsCoT], Generic[OptionsCoT]):
     """A custom chat client that echoes messages back with modifications.
 
     This demonstrates how to implement a custom chat client by extending BaseChatClient
@@ -112,11 +112,11 @@ class EchoingChatClient(BaseChatClient[TOptions_co], Generic[TOptions_co]):
 
 
 class EchoingChatClientWithLayers(  # type: ignore[misc,type-var]
-    ChatMiddlewareLayer[TOptions_co],
-    ChatTelemetryLayer[TOptions_co],
-    FunctionInvocationLayer[TOptions_co],
-    EchoingChatClient[TOptions_co],
-    Generic[TOptions_co],
+    ChatMiddlewareLayer[OptionsCoT],
+    ChatTelemetryLayer[OptionsCoT],
+    FunctionInvocationLayer[OptionsCoT],
+    EchoingChatClient[OptionsCoT],
+    Generic[OptionsCoT],
 ):
     """Echoing chat client that explicitly composes middleware, telemetry, and function layers."""
 

python/samples/getting_started/observability/configure_otel_providers_with_parameters.py

@@ -106,9 +106,15 @@ async def main(scenario: Literal["chat_client", "chat_client_stream", "tool", "a
     # Create custom OTLP exporters with specific configuration
     # Note: You need to install opentelemetry-exporter-otlp-proto-grpc or -http separately
     try:
-        from opentelemetry.exporter.otlp.proto.grpc._log_exporter import OTLPLogExporter
-        from opentelemetry.exporter.otlp.proto.grpc.metric_exporter import OTLPMetricExporter
-        from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import OTLPSpanExporter
+        from opentelemetry.exporter.otlp.proto.grpc._log_exporter import (  # pyright: ignore[reportMissingImports]
+            OTLPLogExporter,
+        )
+        from opentelemetry.exporter.otlp.proto.grpc.metric_exporter import (  # pyright: ignore[reportMissingImports]
+            OTLPMetricExporter,
+        )
+        from opentelemetry.exporter.otlp.proto.grpc.trace_exporter import (  # pyright: ignore[reportMissingImports]
+            OTLPSpanExporter,
+        )
 
         # Create exporters with custom configuration
         # These will be added to any exporters configured via environment variables