= Word(nums).setParseAction(lambda toks: int(toks[0]))
            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
            
            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))
        prints::
            [5120, 100, 655360, 268435456]
        Equivalent form of C{expr.copy()} is just C{expr()}::
            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
        N)