code: def predict(self, imgs):
      labels = super(InvalidLabelSizeLink, self).predict(imgs)
      return [label[1:] for label in labels]
  
imports: import numpy
  import unittest
  import chainer
  from chainercv.utils import assert_is_semantic_segmentation_link
  from chainercv.utils import testing
label_desc: Use image node_id 1 for calling the InvalidLabelSizeLink obj's underlying member method code with example usage: obj.predict(imgs) and returns: unknown