Support Anthropic Beta Service Instrumentation

[adase11]

The wrapped Anthropic client only supports logging the non-beta path for the Anthropic SDK.

InstrumentedAnthropicClient.invoke() only intercepts "messages()" - beta() falls through to the raw delegate

  if (methodName.equals("messages") && parameterTypes.length == 0) {
      return new InstrumentedMessageService(delegate.messages(), ...);
  }
  return super.invoke(proxy, method, args); // beta() goes here - no instrumentation

An example Anthropic SDK request:

anthropicClient.beta().messages().createStreaming(params);

It would be helpful to support the beta path as wel

[realark]

Hey @adase11 , seems straightforward. I'll add support for this

[adase11]

Hey @adase11 , seems straightforward. I'll add support for this

Awesome thanks!