code: def format_function_versions(function_versions: Sequence[int]) -> str:
      return f"{', '.join([str(v) for v in function_versions])}"
  
imports: import os
  from collections import defaultdict
  from typing import Any, Dict, List, NamedTuple, Sequence, Set, Tuple
  import numpy
  from onnx import defs, helper
  from onnx.backend.sample.ops import collect_sample_implementations
  from onnx.backend.test.case import collect_snippets
  from onnx.defs import ONNX_ML_DOMAIN, OpSchema
label_desc: Use image node_id 4 for calling a global function with example usage: format_function_versions(function_versions) and returns: str