def __init__(self, eos_label, alphabet_size):
        self.eos_label = eos_label
        self.alphabet_size = alphabet_size
Return a compiled regular expression based on the activate language.
dataset/ETHPy150Open rizar/attention-lvcsr/lvsr/ops.py/RewardOp.__init__--crossover with--dataset/ETHPy150Open django/django/django/urls/resolvers.py/LocaleRegexProvider.regex