code: def basic_routes():
      return [
          {
              "name": "completions-gpt4",
              "route_type": "llm/v1/completions",
              "route_url": "/gateway/completions-gpt4/invocations",
              "model": {
                  "name": "gpt-4",
                  "provider": "openai",
              },
          },
          {
              "name": "embeddings-gpt4",
              "route_type": "llm/v1/embeddings",
              "route_url": "/gateway/embeddings-gpt4/invocations",
              "model": {
                  "name": "gpt-4",
                  "provider": "openai",
              },
          },
      ]
  
file_path: mlflow/tests/gateway/test_runner.py
imports: from pathlib import Path
  import pytest
  from tests.gateway.tools import Gateway, save_yaml
label_desc: Use image node_id 2 for calling a global function with example usage: basic_routes() and returns: list