fix(cohere.py): return usage as a pydantic object not dict

litellm/llms/cohere.py

@@ -300,8 +300,7 @@ def embedding(
     for text in input:
         input_tokens += len(encoding.encode(text))
 
-    model_response["usage"] = {
-        "prompt_tokens": input_tokens,
-        "total_tokens": input_tokens,
-    }
+    model_response["usage"] = Usage(
+        prompt_tokens=input_tokens, completion_tokens=0, total_tokens=input_tokens
+    )
     return model_response

litellm/tests/test_embedding.py

@@ -117,6 +117,8 @@ def test_openai_azure_embedding_simple():
 
         print("Calculated request cost=", request_cost)
 
+        assert isinstance(response.usage, litellm.Usage)
+
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
 
@@ -204,6 +206,8 @@ def test_cohere_embedding():
             input=["good morning from litellm", "this is another item"],
         )
         print(f"response:", response)
+
+        assert isinstance(response.usage, litellm.Usage)
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
 
@@ -269,6 +273,8 @@ def test_bedrock_embedding_titan():
 
         assert end_time - start_time < 0.1
         litellm.disable_cache()
+
+        assert isinstance(response.usage, litellm.Usage)
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
 
@@ -295,6 +301,8 @@ def test_bedrock_embedding_cohere():
             isinstance(x, float) for x in response["data"][0]["embedding"]
         ), "Expected response to be a list of floats"
         # print(f"response:", response)
+
+        assert isinstance(response.usage, litellm.Usage)
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
 
@@ -331,6 +339,8 @@ def test_hf_embedding():
             input=["good morning from litellm", "this is another item"],
         )
         print(f"response:", response)
+
+        assert isinstance(response.usage, litellm.Usage)
     except Exception as e:
         # Note: Huggingface inference API is unstable and fails with "model loading errors all the time"
         pass
@@ -386,6 +396,8 @@ def test_aembedding_azure():
                     response._hidden_params["custom_llm_provider"],
                 )
                 assert response._hidden_params["custom_llm_provider"] == "azure"
+
+                assert isinstance(response.usage, litellm.Usage)
             except Exception as e:
                 pytest.fail(f"Error occurred: {e}")
 
@@ -440,6 +452,7 @@ def test_mistral_embeddings():
             input=["good morning from litellm"],
         )
         print(f"response: {response}")
+        assert isinstance(response.usage, litellm.Usage)
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")