code: def __init__(self, groups):
      self.groups = groups
  
imports: import numpy
  from chainer import backend
  from chainer import function_node
  from chainer.utils import argument
  from chainer.utils import type_check
label_desc: Use image node_id 1 to create a new FixedDecorrelatedBatchNormalization object from inherited base classes: function_node with example: obj = FixedDecorrelatedBatchNormalization(groups)