code: def __str__(self):
      return (
          "Host:\n" + str(self.host) + "\nDevice:\n" + str(self.device)
      )
  
file_path: nni/nni/compression/quantization_speedup/trt_pycuda.py
imports: import pycuda.driver
  import pycuda.autoinit
  import tensorrt
label_desc: Use image node_id 2 for calling the HostDeviceMem obj's underlying member method code with example usage: obj.__str__() and returns: unknown