code: def __str__(self):
      return NvmlErrorCodes[str(self.error_code)]
  
imports: import threading
  from ctypes import CDLL, POINTER, Structure, byref, c_uint, c_ulonglong, create_string_buffer
label_desc: Use image node_id 2 for calling the NvmlException obj's underlying member method code with example usage: obj.__str__() and returns: NvmlErrorCodes