code: def from_config(cls, config):
      return cls(**config)
  
imports: import numpy
  import tensorflow
  from tensorflow.keras import backend
  from bigdl.nano.tf.keras import Model
  from tensorflow.keras.layers import LSTM, Dense, Lambda, Reshape, Layer, Input
label_desc: Use image node_id 4 for calling the LSTMSeq2Seq obj's underlying member method code with example usage: obj.from_config(cls, config) and returns: cls