def select_action(self, curr_state):
        raise NotImplementedError( "This must be implemented by the child class of Base_RL" )
L{BookBuilder.buildPDF} runs C{latex} three times.
dataset/ETHPy150Open posborne/mlcollection/mlcollection/rl_base.py/Base_RL.select_action--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/test/test_release.py/BookBuilderTests.test_buildPDFRunsLaTeXThreeTimes