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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 asarray(self, copy=True, cache=False, **kwargs):
 """Return image data from file as numpy array."""

        data = self._data
        if data is None:
            data = self._read_data(self._fh, **kwargs)
            if cache:
                self._data = data
            else:
                return data
        return deepcopy(data) if copy else data