model.save_weights('models/model_weights.h5')
with open('models/model_architecture.json', 'w') as f:
    f.write(model.to_json())

path/to/site-packages/keras/engine/topology.py:2379: UserWarning: Layer lstm_15 was
passed non-serializable keyword arguments: {'initial_state': [<tf.Tensor 's0_7:0'
shape=(?, 64) dtype=float32>, <tf.Tensor 'c0_7:0' shape=(?, 64) dtype=float32>]}.
They will not be included in the serialized model (and thus will be missing at
deserialization time).
str(node.arguments) + '. They will not be included '