Holds a minibatch of input data. This is never directly created, but only returned by `MinibatchSource` instances.
MinibatchData(value, num_sequences, num_samples, sweep_end)
****** Attributes: ******
data
end_of_sweep
is_sparse
mask
num_samples
num_sequences
shape
****** Associated Functions: ******
mb_as_sequences(variable = NULL)