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