code: def embedding():
      # logic for parsing in - calling - parsing out model embedding calls
      pass
  
file_path: litellm/litellm/llms/vllm.py
imports: import os
  import json
  from enum import Enum
  import requests
  import time, httpx
  from typing import Callable, Any
  from litellm.utils import ModelResponse, Usage
  from .prompt_templates.factory import prompt_factory, custom_prompt
label_desc: Use image node_id 4 for calling a global function with example usage: embedding() without return types