"""
Serialization utilities for memory service.

Provides functions to convert numpy arrays to/from bytes for database storage.
"""
import numpy as np


def serialize_embedding(vector: np.ndarray) -> bytes:
    """
    Convert numpy array to bytes for database storage.

    Args:
        vector: Numpy array embedding vector

    Returns:
        Serialized bytes representation
    """
    return vector.astype(np.float32).tobytes()


def deserialize_embedding(blob: bytes) -> np.ndarray:
    """
    Convert bytes back to numpy array.

    Args:
        blob: Serialized embedding bytes

    Returns:
        Deserialized numpy array
    """
    return np.frombuffer(blob, dtype=np.float32)