code: def test_openai_optional_params_embeddings():
      litellm.drop_params = True
      optional_params = get_optional_params_embeddings(
          user="John",
          encoding_format=None,
          custom_llm_provider="openai",
      )
      assert len(optional_params) == 1
      assert optional_params["user"] == "John"
  
file_path: litellm/litellm/tests/test_optional_params.py
imports: import sys, os, time, inspect, asyncio, traceback
  import pytest
  import litellm
  from litellm.utils import get_optional_params_embeddings
label_desc: Use image node_id 2 for calling a global function with example usage: test_openai_optional_params_embeddings() without return types