1 files changed, 99 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/litellm/llms/azure_ai/embed/cohere_transformation.py b/.venv/lib/python3.12/site-packages/litellm/llms/azure_ai/embed/cohere_transformation.py
new file mode 100644
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+++ b/.venv/lib/python3.12/site-packages/litellm/llms/azure_ai/embed/cohere_transformation.py
@@ -0,0 +1,99 @@
+"""
+Transformation logic from OpenAI /v1/embeddings format to Azure AI Cohere's /v1/embed. 
+
+Why separate file? Make it easy to see how transformation works
+
+Convers
+- Cohere request format
+
+Docs - https://docs.aws.amazon.com/bedrock/latest/userguide/model-parameters-titan-embed-text.html
+"""
+
+from typing import List, Optional, Tuple
+
+from litellm.types.llms.azure_ai import ImageEmbeddingInput, ImageEmbeddingRequest
+from litellm.types.llms.openai import EmbeddingCreateParams
+from litellm.types.utils import EmbeddingResponse, Usage
+from litellm.utils import is_base64_encoded
+
+
+class AzureAICohereConfig:
+    def __init__(self) -> None:
+        pass
+
+    def _map_azure_model_group(self, model: str) -> str:
+
+        if model == "offer-cohere-embed-multili-paygo":
+            return "Cohere-embed-v3-multilingual"
+        elif model == "offer-cohere-embed-english-paygo":
+            return "Cohere-embed-v3-english"
+
+        return model
+
+    def _transform_request_image_embeddings(
+        self, input: List[str], optional_params: dict
+    ) -> ImageEmbeddingRequest:
+        """
+        Assume all str in list is base64 encoded string
+        """
+        image_input: List[ImageEmbeddingInput] = []
+        for i in input:
+            embedding_input = ImageEmbeddingInput(image=i)
+            image_input.append(embedding_input)
+        return ImageEmbeddingRequest(input=image_input, **optional_params)
+
+    def _transform_request(
+        self, input: List[str], optional_params: dict, model: str
+    ) -> Tuple[ImageEmbeddingRequest, EmbeddingCreateParams, List[int]]:
+        """
+        Return the list of input to `/image/embeddings`, `/v1/embeddings`, list of image_embedding_idx for recombination
+        """
+        image_embeddings: List[str] = []
+        image_embedding_idx: List[int] = []
+        for idx, i in enumerate(input):
+            """
+            - is base64 -> route to image embeddings
+            - is ImageEmbeddingInput -> route to image embeddings
+            - else -> route to `/v1/embeddings`
+            """
+            if is_base64_encoded(i):
+                image_embeddings.append(i)
+                image_embedding_idx.append(idx)
+
+        ## REMOVE IMAGE EMBEDDINGS FROM input list
+        filtered_input = [
+            item for idx, item in enumerate(input) if idx not in image_embedding_idx
+        ]
+
+        v1_embeddings_request = EmbeddingCreateParams(
+            input=filtered_input, model=model, **optional_params
+        )
+        image_embeddings_request = self._transform_request_image_embeddings(
+            input=image_embeddings, optional_params=optional_params
+        )
+
+        return image_embeddings_request, v1_embeddings_request, image_embedding_idx
+
+    def _transform_response(self, response: EmbeddingResponse) -> EmbeddingResponse:
+        additional_headers: Optional[dict] = response._hidden_params.get(
+            "additional_headers"
+        )
+        if additional_headers:
+            # CALCULATE USAGE
+            input_tokens: Optional[str] = additional_headers.get(
+                "llm_provider-num_tokens"
+            )
+            if input_tokens:
+                if response.usage:
+                    response.usage.prompt_tokens = int(input_tokens)
+                else:
+                    response.usage = Usage(prompt_tokens=int(input_tokens))
+
+            # SET MODEL
+            base_model: Optional[str] = additional_headers.get(
+                "llm_provider-azureml-model-group"
+            )
+            if base_model:
+                response.model = self._map_azure_model_group(base_model)
+
+        return response