"""Abstract base class for embedding providers."""
from abc import ABC, abstractmethod
class EmbeddingProvider(ABC):
"""Base class for embedding providers."""
@abstractmethod
async def embed(self, text: str) -> list[float]:
"""
Generate embedding vector for text.
Args:
text: Input text to embed
Returns:
Vector embedding as list of floats
"""
pass
@abstractmethod
async def embed_batch(self, texts: list[str]) -> list[list[float]]:
"""
Generate embeddings for multiple texts (optimized).
Args:
texts: List of texts to embed
Returns:
List of vector embeddings
"""
pass
@abstractmethod
def get_dimension(self) -> int:
"""
Get embedding dimension for this provider.
Returns:
Vector dimension (e.g., 768 for nomic-embed-text)
"""
pass