def header(self, text, level, raw=None):
        return '<h%d>%s</h%d>\n' % (level, text, level)
Apply ``self.prob_classify()`` to each element of ``featuresets``.  I.e.:
dataset/ETHPy150Open neuroo/equip/examples/sample-test-program/test_module/mistune.py/Renderer.header--crossover with--dataset/ETHPy150Open nltk/nltk/nltk/classify/api.py/ClassifierI.prob_classify_many