code: def __init__(self, num_classes=None, multi_label=False, **kwargs):
      super().__init__(**kwargs)
      self.num_classes = num_classes
      self.label_encoder = None
      self.multi_label = multi_label
      self.labels = set()
  
file_path: autokeras/autokeras/analysers/output_analysers.py
imports: import numpy
  from autokeras.engine import analyser
label_desc: Use image node_id 1 to create a new ClassificationAnalyser object from inherited base classes: TargetAnalyser with example: obj = ClassificationAnalyser(num_classes, multi_label)