code: def func_deployment():
      return "hello"
  
file_path: ray/python/ray/serve/tests/test_deployment_graph_ingress.py
imports: import sys
  import pytest
  from ray import serve
  from ray.serve._private.deployment_graph_build import build
  from ray.serve._private.deployment_graph_build import get_and_validate_ingress_deployment
label_desc: Use image node_id 1 for calling a global function with example usage: func_deployment() and returns: str