Files
langchain-python/langchain/memory/utils.py
T
Harrison Chase 3bfe7cf467 Harrison/split schema dir (#7025)
should be no functional changes

also keep __init__ exposing a lot for backwards compat

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Co-authored-by: Dev 2049 <dev.dev2049@gmail.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
2023-07-01 13:39:19 -04:00

23 lines
687 B
Python

from typing import Any, Dict, List
from langchain.schema.messages import get_buffer_string # noqa: 401
def get_prompt_input_key(inputs: Dict[str, Any], memory_variables: List[str]) -> str:
"""
Get the prompt input key.
Args:
inputs: Dict[str, Any]
memory_variables: List[str]
Returns:
A prompt input key.
"""
# "stop" is a special key that can be passed as input but is not used to
# format the prompt.
prompt_input_keys = list(set(inputs).difference(memory_variables + ["stop"]))
if len(prompt_input_keys) != 1:
raise ValueError(f"One input key expected got {prompt_input_keys}")
return prompt_input_keys[0]