mirror of
https://github.com/hwchase17/langchain
synced 2024-11-04 06:00:26 +00:00
d32e511826
Changes: - remove langchain_core/schema since no clear distinction b/n schema and non-schema modules - make every module that doesn't end in -y plural - where easy have 1-2 classes per file - no more than one level of nesting in directories - only import from top level core modules in langchain
25 lines
722 B
Python
25 lines
722 B
Python
from __future__ import annotations
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from abc import ABC, abstractmethod
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from typing import Any, Optional, Sequence
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from langchain_core.outputs import Generation
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RETURN_VAL_TYPE = Sequence[Generation]
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class BaseCache(ABC):
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"""Base interface for cache."""
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@abstractmethod
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def lookup(self, prompt: str, llm_string: str) -> Optional[RETURN_VAL_TYPE]:
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"""Look up based on prompt and llm_string."""
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@abstractmethod
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def update(self, prompt: str, llm_string: str, return_val: RETURN_VAL_TYPE) -> None:
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"""Update cache based on prompt and llm_string."""
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@abstractmethod
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def clear(self, **kwargs: Any) -> None:
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"""Clear cache that can take additional keyword arguments."""
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