feat(databricks/chat): support structured outputs on databricks

Closes https://github.com/BerriAI/litellm/pull/6978

- handles content as list for dbrx, - handles streaming+response_format for dbrx

litellm/llms/databricks/embed/handler.py

@@ -0,0 +1,50 @@
+"""
+Calling logic for Databricks embeddings
+"""
+
+from typing import Optional
+
+import litellm
+from litellm.utils import EmbeddingResponse
+
+from ...openai_like.embedding.handler import OpenAILikeEmbeddingHandler
+from ..common_utils import DatabricksBase
+
+
+class DatabricksEmbeddingHandler(OpenAILikeEmbeddingHandler, DatabricksBase):
+    def embedding(
+        self,
+        model: str,
+        input: list,
+        timeout: float,
+        logging_obj,
+        api_key: Optional[str],
+        api_base: Optional[str],
+        optional_params: dict,
+        model_response: Optional[litellm.utils.EmbeddingResponse] = None,
+        client=None,
+        aembedding=None,
+        custom_endpoint: Optional[bool] = None,
+        headers: Optional[dict] = None,
+    ) -> EmbeddingResponse:
+        api_base, headers = self.databricks_validate_environment(
+            api_base=api_base,
+            api_key=api_key,
+            endpoint_type="embeddings",
+            custom_endpoint=custom_endpoint,
+            headers=headers,
+        )
+        return super().embedding(
+            model=model,
+            input=input,
+            timeout=timeout,
+            logging_obj=logging_obj,
+            api_key=api_key,
+            api_base=api_base,
+            optional_params=optional_params,
+            model_response=model_response,
+            client=client,
+            aembedding=aembedding,
+            custom_endpoint=True,
+            headers=headers,
+        )