'Generate inputs, outputs numpy tensor pair of size appropriate for this minibatch.
Arguments:
time_steps (int): Number of time steps in this minibatch.
Returns:
tuple: (input, output) tuple of numpy arrays.'

def fetch_io(self, time_steps):

    columns = (time_steps * self.be.bsz)
    inputs = np.zeros((self.nin, columns))
    outputs = np.zeros((self.nout, columns))
    return (inputs, outputs)
