def as_sparse_array(self, kind=None, fill_value=None, copy=False):
if fill_value is None:<EOL><INDENT>fill_value = self.fill_value<EOL><DEDENT>if kind is None:<EOL><INDENT>kind = self.kind<EOL><DEDENT>return SparseArray(self.values, sparse_index=self.sp_index,<EOL>fill_value=fill_value, kind=kind, copy=copy)<EOL>
return my self as a sparse array, do not copy by default