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89db8b12f1
* Improving the readme and renaming examples dir * fix ci * updating name * nuance the wording
48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
from typing import Any, List, Mapping
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from agnext.components.memory import ChatMemory
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from agnext.components.models import FunctionExecutionResultMessage
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from ..types import Message
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class BufferedChatMemory(ChatMemory[Message]):
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"""A buffered chat memory that keeps a view of the last n messages,
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where n is the buffer size. The buffer size is set at initialization.
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Args:
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buffer_size (int): The size of the buffer.
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"""
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def __init__(self, buffer_size: int) -> None:
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self._messages: List[Message] = []
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self._buffer_size = buffer_size
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async def add_message(self, message: Message) -> None:
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"""Add a message to the memory."""
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self._messages.append(message)
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async def get_messages(self) -> List[Message]:
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"""Get at most `buffer_size` recent messages."""
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messages = self._messages[-self._buffer_size :]
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# Handle the first message is a function call result message.
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if messages and isinstance(messages[0], FunctionExecutionResultMessage):
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# Remove the first message from the list.
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messages = messages[1:]
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return messages
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async def clear(self) -> None:
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"""Clear the message memory."""
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self._messages = []
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def save_state(self) -> Mapping[str, Any]:
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return {
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"messages": [message for message in self._messages],
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"buffer_size": self._buffer_size,
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}
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def load_state(self, state: Mapping[str, Any]) -> None:
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self._messages = state["messages"]
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self._buffer_size = state["buffer_size"]
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