def write(self, obj, **kwargs):
super().write(obj, **kwargs)<EOL>for name, ss in obj.items():<EOL><INDENT>key = '<STR_LIT>'.format(name=name)<EOL>if key not in self.group._v_children:<EOL><INDENT>node = self._handle.create_group(self.group, key)<EOL><DEDENT>else:<EOL><INDENT>node = getattr(self.group, key)<EOL><DEDENT>s = SparseSeriesFixed(self.parent, node)<EOL>s.write(ss)<EOL><DEDENT>self.attrs.default_fill_value = obj.default_fill_value<EOL>self.attrs.default_kind = obj.default_kind<EOL>self.write_index('<STR_LIT>', obj.columns)<EOL>
write it as a collection of individual sparse series