code: func Dtype2DataType(t tensor.Dtype) cudnn.DataType {
  	switch t.Name() {
  	case "float64":
  		return cudnn.Double
  	case "float32":
  		return cudnn.Float
  	case "float16":
  		return cudnn.Half
  	case "int8":
  		return cudnn.Int8
  	case "int32":
  		return cudnn.Int32
  	case "int128":
  		return cudnn.Int8x4
  	}
  	panic("Unreachable")
  }
docs: // Dtype2DataType converts a tensor.Dtype to a cudnnDataType.