code: def __init__(self, backend):
      super(HBBackend, self).__init__()
      self.backend = backend
      self.predict_fn = None
      self.batch_benchmark = False
  
imports: from abc import ABC, abstractmethod
  import numpy
  from benchmarks.timer import Timer
  from benchmarks.datasets import LearningTask
  from hummingbird.ml import constants
  from hummingbird.ml import convert, convert_batch
label_desc: Use image node_id 1 to create a new HBBackend object from inherited base classes: ScoreBackend with example: obj = HBBackend(backend)