model_decode: Decode Output of Any Layer
In tpq/caress: Caress, a Gentler Introduction to Keras

This function returns the output of any one layer based on the input of any other layer. Use this function to decode the latent space of an autoencoder.

1	model_decode(model, data, input_at, output_at)

`model`	A `keras` model.
`data`	A matrix or list of matrices. The input data. See `get_layer_output`.
`input_at`	The layer name or index. From where the input data has come.
`output_at`	The layer name or index. From where the output data should come.