class_docstr: Configuration object that helps manage the graph.
code: def get_batch(self, batch_size):
      assert self.train_path is not None
      data_train = reader.NSynthDataset(
          self.train_path, is_training=True
      )
      return data_train.get_wavenet_batch(batch_size, length=6144)
  
file_path: magenta/magenta/models/nsynth/wavenet/h512_bo16.py
imports: from magenta.models.nsynth import reader
  from magenta.models.nsynth import utils
  from magenta.models.nsynth.wavenet import masked
  import tensorflow.compat.v1
label_desc: Use image node_id 2 for calling the Config obj's underlying member method code with example usage: obj.get_batch(batch_size) and returns: data_train