code: def bn_decay(self):
      return self.net_config["bn_decay"]
  
imports: from .basic_model import BasicModel
  from ..data_providers.base_provider import DataProvider
  from .layers import ConvLayer, PoolLayer, FCLayer
  from .layer_cascade import LayerCascade
  import tensorflow
  import numpy
label_desc: Use image node_id 4 for calling the SimpleConvnetConfig obj's underlying member method code with example usage: obj.bn_decay() and returns: self