def __init__(self, type, name, attrs, index=None):
        raise NotImplementedError()
count the number of taxa as found using LCA algorithm
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/samples-and-tests/i-am-a-developer/mechanize/ClientForm.py/Control.__init__--crossover with--dataset/ETHPy150Open CGATOxford/cgat/obsolete/pipeline_metagenomecommunities.py/countLcaPerLevelTaxa