code: def _warn_accessing_property(self):
      warnings.warn(
          "The attributes of BatchRenormalizationFunction "
          "are deprecated. "
          "Consider setting update_statistics=True to "
          "batch_renormalization to update running statistics.",
          DeprecationWarning,
      )
  
imports: import warnings
  import numpy
  from chainer import backend
  from chainer.backends import cuda
  from chainer import configuration
  from chainer import function
  from chainer.functions.normalization import batch_normalization
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the BatchRenormalizationFunction obj's underlying member method code with example usage: obj._warn_accessing_property() without return types