code: def model_optimizer():
      """Decorator to turn a function into a model optimizer."""
  
      def decorator(function):
          return optimizer_pass(None)(function)
  
      return decorator
  
imports: import importlib
  import inspect
  import os
  from hls4ml.utils.string_utils import convert_to_snake_case
label_desc: Use image node_id 3 for calling a global function with example usage: model_optimizer() and returns: decorator, optimizer_pass