Mem0 Backend Abstraction (mem0/_backend.py)

Provides a unified interface over Mem0 Platform and OSS memory backends, exposing search, add, update, and delete operations.

# Source: https://github.com/mperkins0155/hermes-agent | License: MIT | Copyright 2025 Nous Research
# Provided via justclaw.it.com; keep this notice with the code.
"""Backend abstraction for Mem0 Platform and OSS modes."""

from __future__ import annotations

from abc import ABC, abstractmethod
from typing import Any


class Mem0Backend(ABC):
    """Unified interface over Platform (MemoryClient) and OSS (Memory) backends."""

    @abstractmethod
    def search(self, query: str, *, filters: dict, top_k: int = 10, rerank: bool = False) -> list[dict]:
        ...

    @abstractmethod
    def add(
        self,
        messages: list,
        *,
        user_id: str,
        agent_id: str,
        infer: bool = False,
        metadata: dict | None = None,
    ) -> dict:
        ...

    @abst

... (truncated -- full source via MCP)