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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 get_qpimage(self, idx=0):
 """Return background-corrected QPImage"""

        if self._bgdata:
            # The user has explicitly chosen different background data
            # using `get_qpimage_raw`.
            qpi = super(SingleHdf5Qpimage, self).get_qpimage()
        else:
            # We can use the background data stored in the qpimage hdf5 file
            qpi = qpimage.QPImage(h5file=self.path,
                                  h5mode="r",
                                  h5dtype=self.as_type,
                                  ).copy()
            # Force meta data
            for key in self.meta_data:
                qpi[key] = self.meta_data[key]
            # set identifier
            qpi["identifier"] = self.get_identifier(idx)
        return qpi