def putaround(self, before="<STR_LIT>", after="<STR_LIT>", indent="<STR_LIT:U+0020>" * <NUM_LIT:4>):
before = Source(before)<EOL>after = Source(after)<EOL>newsource = Source()<EOL>lines = [(indent + line) for line in self.lines]<EOL>newsource.lines = before.lines + lines + after.lines<EOL>return newsource<EOL>
return a copy of the source object with
            'before' and 'after' wrapped around it.