code: def implements(torch_function):
      """Register a torch function override for PHETensor"""
  
      @functools.wraps(torch_function)
      def decorator(func):
          _HANDLED_FUNCTIONS[torch_function] = auto_trace(func)
          return func
  
      return decorator
  
imports: import functools
  import torch
  from fate.arch.trace import auto_trace
label_desc: Use image node_id 1 for calling a global function with example usage: implements(torch_function) and returns: decorator, func