code: def _set_class_packed_func(packed_func_class):
      global _CLASS_PACKED_FUNC
      _CLASS_PACKED_FUNC = packed_func_class
  
imports: import ctypes
  import traceback
  from numbers import Number, Integral
  from ..base import _LIB, get_last_ffi_error, py2cerror, check_call, raise_last_ffi_error
  from ..base import c_str, string_types
  from ..runtime_ctypes import DataType, TVMByteArray, Device, ObjectRValueRef
  from .None import ndarray
  from .ndarray import NDArrayBase, _make_array
  from .types import TVMValue, ArgTypeCode
  from .types import TVMPackedCFunc, TVMCFuncFinalizer
  from .types import RETURN_SWITCH, C_TO_PY_ARG_SWITCH, _wrap_arg_func, _device_to_int64
  from .object import ObjectBase, PyNativeObject, _set_class_object
  from .None import object
label_desc: Use image node_id 10 for calling a global function with example usage: _set_class_packed_func(packed_func_class) without return types