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Cache llm chain to avoid loading the model at every utterance [ENG 437] #12728

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Cache llm chain to avoid loading the model at every utterance [ENG 437] #12728

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d640913
Cache llm
varunshankar Aug 9, 2023
9bc1805
Merge branch 'dm2' into ENG-437-cache-llm-chain
varunshankar Aug 13, 2023
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5 changes: 2 additions & 3 deletions rasa/cdu/command_generator/llm_command_generator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,7 @@ def __init__(
self.prompt_template = self.config["prompt"]
self._model_storage = model_storage
self._resource = resource
self.llm = llm_factory(self.config.get(LLM_CONFIG_KEY), DEFAULT_LLM_CONFIG)

@classmethod
def create(
Expand Down Expand Up @@ -122,10 +123,8 @@ def _generate_action_list_using_llm(self, prompt: str) -> Optional[str]:
Returns:
generated text
"""
llm = llm_factory(self.config.get(LLM_CONFIG_KEY), DEFAULT_LLM_CONFIG)

try:
return llm(prompt)
return self.llm(prompt)
except Exception as e:
# unfortunately, langchain does not wrap LLM exceptions which means
# we have to catch all exceptions here
Expand Down
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