class_docstr: Base class for networks using Tensorforce layers.
code: def invalid_layer_types(self):
      return (PreprocessingLayer,)
  
imports: from collections import Counter
  import tensorflow
  from tensorforce import TensorforceError
  from tensorforce.core import ArrayDict, Module, SignatureDict, TensorDict, TensorSpec, TensorsSpec, tf_function, tf_util
  from tensorforce.core.layers import Block, Layer, layer_modules, MultiInputLayer, NondeterministicLayer, PreprocessingLayer, Register, Reuse, StatefulLayer, TemporalLayer
  from tensorforce.core.parameters import Parameter
label_desc: Use image node_id 2 for calling the LayerbasedNetwork obj's underlying member method code with example usage: obj.invalid_layer_types() and returns: PreprocessingLayer