code: def get(self, path):
      if not path:
          if "__root__" in self.contents:
              return dict(self.contents["__root__"])
          return {}
      if path in self.contents:
          return self.contents[path].tolist()
      return {}
  
imports: import datetime
  import io
  import json
  import tempfile
  import warnings
  import zipfile
  import numpy
  from keras.backend.common import global_state
  from keras.layers.layer import Layer
  from keras.losses.loss import Loss
  from keras.metrics.metric import Metric
  from keras.optimizers.optimizer import Optimizer
  from keras.saving.serialization_lib import ObjectSharingScope
  from keras.saving.serialization_lib import deserialize_keras_object
  from keras.saving.serialization_lib import serialize_keras_object
  from keras.trainers.compile_utils import CompileMetrics
  from keras.utils import file_utils
  from keras.utils import naming
  from keras.version import __version__
label_desc: Use image node_id 3 for calling the NpzIOStore obj's underlying member method code with example usage: obj.get(path) and returns: dict, dict, self, dict