refactor: move passthrough logic to separate module

This is a temporary implementatoin for backward compatibility

Author: Pouyanpi

nemoguardrails/colang/v2_x/library/llm.co

@@ -13,21 +13,6 @@ flow bot say something like $text
   await bot say $variation
 
 
-flow bot response to user prompt
-  """Just make a call to LLM in passthrough mode"""
-
-  activate polling llm request response
-  await _user_said_something_unexpected as $user_said
-  $event = $user_said.event
-
-  log 'unexpected user utterance: "{$event.final_transcript}"'
-
-  $user_message = $event.final_transcript
-
-  log 'start generating bot response in passthrough mode...'
-  $bot_message = await PassthroughLLMAction(user_message=$user_message)
-  bot say $bot_message
-
 # -----------------------------------
 # LLM Utilities
 # -----------------------------------
@@ -53,16 +38,10 @@ flow polling llm request response $interval=1.0
 
 flow llm continuation
   """Activate all LLM based interaction continuations."""
-  # workaround to prioritizethis flow
-  if $system.config.passthrough
-    activate automating intent detection
-    activate generating user intent for unhandled user utterance
-    activate bot response to user prompt
-  else
-    activate automating intent detection
-    activate generating user intent for unhandled user utterance
-    activate continuation on unhandled user intent
-    activate continuation on undefined flow
+  activate automating intent detection
+  activate generating user intent for unhandled user utterance
+  activate continuation on unhandled user intent
+  activate continuation on undefined flow
 
 
 flow generating user intent for unhandled user utterance

nemoguardrails/colang/v2_x/library/passthrough.co

@@ -0,0 +1,23 @@
+
+import llm
+
+flow responding to raw user message $user_message
+  """Just make a call to LLM in passthrough mode"""
+
+  activate polling llm request response
+  await _user_said_something_unexpected as $user_said
+  $event = $user_said.event
+
+  log 'unexpected user utterance: "{$event.final_transcript}"'
+
+  $user_message = $event.final_transcript
+
+  log 'start generating bot response in passthrough mode...'
+  $bot_message = await PassthroughLLMAction(user_message=$user_message)
+  bot say $bot_message
+
+@override
+flow llm continuation
+  activate automating intent detection
+  activate generating user intent for unhandled user utterance
+  activate responding to raw user message