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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _bg_combine(self, bgs):
 """Combine several background amplitude images"""

        out = np.ones(self.h5["raw"].shape, dtype=float)
        # bg is an h5py.DataSet
        for bg in bgs:
            out *= bg[:]
        return out