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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 is_appendable_to(self, group):
 """Return True if features are appendable to a HDF5 group"""

        return (group.attrs['format'] == self.dformat and
                group[self.name].dtype == self.dtype and
                # We use a method because dim differs in dense and sparse.
                self._group_dim(group) == self.dim)