code: def code_verification(func: Callable) -> Callable:
      """Compares history hashes of an Empty Action Object to that of the real action object
  
      Inputs:
      - func:: a Callable whose sole argument should be the Private Dataset(s) being used. Constraints:
          - Input arguments are the private datasets being used
          - Output arguments are the results requested.
  
      Outputs:
      - boolean:: if history hashes match
      """
  
      def wrapper(
          *args: Any, **kwargs: Any
      ) -> Union[SyftSuccess, SyftError]:
          trace_assets = []
          for asset in args:
              if not isinstance(asset, ActionObject):
                  raise Exception(
                      f"ActionObject expected, instead received: {type(asset)}"
                  )
              # Manual type casting for now, to automate later
              if isinstance(asset.syft_action_data, np.ndarray):
                  trace_assets.append(
                      ActionObject(
                          id=asset.id, syft_result_obj=np.ndarray([])
                      )
                  )
              elif isinstance(asset.syft_action_data, pd.DataFrame):
                  trace_assets.append(
                      ActionObject(
                          id=asset.id, syft_result_obj=pd.DataFrame()
                      )
                  )
              else:
                  raise NotImplementedError(
                      f"Trace mode not yet automated for type: {type(asset.syft_action_data)}"
                  )
  
          print("Evaluating function normally to obtain history hash")
          results = func(*args, **kwargs).syft_history_hash
          print(8 * "(-(-_(-_-)_-)-)")
  
          print("Tracing function to obtain history hash")
          traced_results = func(
              *trace_assets, **kwargs
          ).syft_history_hash
          print(8 * "(-(-_(-_-)_-)-)")
  
          # assert len(results) == len(traced_results)
          hashes_match = results == traced_results
          if hashes_match:
              msg = (
                  f"Code Verification passed with matching hashes of {results}! Congratulations, and thank you for "
                  f"supporting PySyft!"
              )
              return SyftSuccess(message=msg)
          else:
              msg = (
                  f"Hashes do not match! Target hashes were: {results} but Traced hashes were: {traced_results}. "
                  f"Please try checking the logs."
              )
              return SyftError(message=msg)
  
      return wrapper
  
file_path: PySyft/packages/syft/src/syft/service/action/verification.py
imports: from typing import Any
  from typing import Callable
  from typing import List
  from typing import Union
  import numpy
  import pandas
  from ..response import SyftError
  from ..response import SyftResponseMessage
  from ..response import SyftSuccess
  from .action_object import ActionObject
label_desc: Use image node_id 3 for calling a global function with example usage: code_verification(func) and returns: wrapper, SyftSuccess, SyftError