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141 | class GigaChatEmbedding(BaseEmbedding):
"""
GigaChat encoder class for generating embeddings.
Attributes:
_client (Optional[GigaChat]): Instance of the GigaChat client.
type (str): Type identifier for the encoder, which is "gigachat".
Example:
.. code-block:: python
from langchain_community.embeddings.gigachat import GigaChatEmbeddings
embeddings = GigaChatEmbeddings(
credentials=..., scope=..., verify_ssl_certs=False
)
"""
_client: Optional[GigaChat] = PrivateAttr()
type: str = "gigachat"
def __init__(
self,
name: Optional[str] = "Embeddings",
auth_data: Optional[str] = None,
scope: Optional[str] = None,
embed_batch_size: int = DEFAULT_EMBED_BATCH_SIZE,
callback_manager: Optional[CallbackManager] = None,
**kwargs: Any,
) -> None:
auth_data = get_from_param_or_env(
"auth_data", auth_data, "GIGACHAT_AUTH_DATA", ""
)
if not auth_data:
raise ValueError(
"You must provide an AUTH DATA to use GigaChat. "
"You can either pass it in as an argument or set it `GIGACHAT_AUTH_DATA`."
)
if scope is None:
raise ValueError(
"""
GigaChat scope cannot be 'None'.
Set 'GIGACHAT_API_PERS' for personal use or 'GIGACHAT_API_CORP' for corporate use.
"""
)
super().__init__(
model_name=name,
embed_batch_size=embed_batch_size,
callback_manager=callback_manager,
**kwargs,
)
try:
self._client = GigaChat(
scope=scope, credentials=auth_data, verify_ssl_certs=False
)
except Exception as e:
raise ValueError(f"GigaChat client failed to initialize. Error: {e}") from e
@classmethod
def class_name(cls) -> str:
"""Return the class name."""
return "GigaChatEmbedding"
def _get_query_embeddings(self, queries: List[str]) -> List[List[float]]:
"""Synchronously Embed documents using a GigaChat embeddings model.
Args:
queries: The list of documents to embed.
Returns:
List of embeddings, one for each document.
"""
embeddings = self._client.embeddings(queries).data
return [embeds_obj.embedding for embeds_obj in embeddings]
async def _aget_query_embeddings(self, queries: List[str]) -> List[List[float]]:
"""Asynchronously embed documents using a GigaChat embeddings model.
Args:
queries: The list of documents to embed.
Returns:
List of embeddings, one for each document.
"""
embeddings = (await self._client.aembeddings(queries)).data
return [embeds_obj.embedding for embeds_obj in embeddings]
def _get_query_embedding(self, query: List[str]) -> List[float]:
"""Synchronously embed a document using GigaChat embeddings model.
Args:
query: The document to embed.
Returns:
Embeddings for the document.
"""
return self._client.embeddings(query).data[0].embedding
async def _aget_query_embedding(self, query: List[str]) -> List[float]:
"""Asynchronously embed a query using GigaChat embeddings model.
Args:
query: The document to embed.
Returns:
Embeddings for the document.
"""
return (await self._client.aembeddings(query)).data[0].embedding
def _get_text_embedding(self, text: str) -> List[float]:
"""Synchronously embed a text using GigaChat embeddings model.
Args:
text: The text to embed.
Returns:
Embeddings for the text.
"""
return self._client.embeddings([text]).data[0].embedding
async def _aget_text_embedding(self, text: str) -> List[float]:
"""Asynchronously embed a text using GigaChat embeddings model.
Args:
text: The text to embed.
Returns:
Embeddings for the text.
"""
return (await self._client.aembeddings([text])).data[0].embedding
|