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import numpy as np
import mxnet as mx
from common import *

def get_iters(mnist, batch_size):
    """Get MNIST iterators."""
    train_iter = mx.io.NDArrayIter(mnist['train_data'],
                                   mnist['train_label'],
                                   batch_size,
                                   shuffle=True)
    val_iter = mx.io.NDArrayIter(mnist['test_data'], mnist['test_label'], batch_size)
    test_iter = mx.io.NDArrayIter(mnist['test_data'], mnist['test_label'], batch_size)
    all_test_labels = np.array(mnist['test_label'])
    return train_iter, val_iter, test_iter, all_test_labels