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langchain/langchain/memory/combined.py

50 lines
1.5 KiB
Python

from typing import Any, Dict, List
from pydantic import BaseModel
from langchain.schema import BaseMemory
class CombinedMemory(BaseMemory, BaseModel):
"""Class for combining multiple memories' data together."""
memories: List[BaseMemory]
"""For tracking all the memories that should be accessed."""
@property
def memory_variables(self) -> List[str]:
"""All the memory variables that this instance provides."""
"""Collected from the all the linked memories."""
memory_variables = []
for memory in self.memories:
memory_variables.extend(memory.memory_variables)
return memory_variables
def load_memory_variables(self, inputs: Dict[str, Any]) -> Dict[str, str]:
"""Load all vars from sub-memories."""
memory_data: Dict[str, Any] = {}
# Collect vars from all sub-memories
for memory in self.memories:
data = memory.load_memory_variables(inputs)
memory_data = {
**memory_data,
**data,
}
return memory_data
def save_context(self, inputs: Dict[str, Any], outputs: Dict[str, str]) -> None:
"""Save context from this session for every memory."""
# Save context for all sub-memories
for memory in self.memories:
memory.save_context(inputs, outputs)
def clear(self) -> None:
"""Clear context from this session for every memory."""
for memory in self.memories:
memory.clear()