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class ArrayBundle(object):
    def __init__(self, *arrays):
        self._arrays = arrays
    def __getattr__(self, attr):
        def adapter(*args, **kwargs):
            results = [getattr(e, attr)(e, *args, **kwargs) for e in self._arrays]
            return ArrayBundle(*results)
        return adapter
    def __repr__(self):
        return "ArrayBundle%r" % (self._arrays)

import numpy as num

x = num.random.randn(4,3)
y = num.random.randn(2,2)

q = ArrayBundle(x,y)
print q.sum()