docs(llama-index): deprecate CallbackHandler and promote Instrumentor (#971)

Author: hassiebp

langfuse/llama_index/_instrumentor.py

@@ -24,7 +24,7 @@
 
 
 class LlamaIndexInstrumentor:
-    """[BETA] Instrumentor for exporting LlamaIndex instrumentation module spans to Langfuse.
+    """Instrumentor for exporting LlamaIndex instrumentation module spans to Langfuse.
 
     This beta integration is currently under active development and subject to change.
     Please provide feedback to the Langfuse team: https://github.com/langfuse/langfuse/issues/1931

langfuse/llama_index/llama_index.py

@@ -57,7 +57,7 @@
 class LlamaIndexCallbackHandler(
     LlamaIndexBaseCallbackHandler, LangfuseBaseCallbackHandler
 ):
-    """LlamaIndex callback handler for Langfuse. This version is in alpha and may change in the future."""
+    """[Deprecated] LlamaIndex callback handler for Langfuse. Deprecated, please use the LlamaIndexInstrumentor instead."""
 
     log = logging.getLogger("langfuse")