def _is_shadowed(self, reaction_id, database):
for other_database in self._databases:<EOL><INDENT>if other_database == database:<EOL><INDENT>break<EOL><DEDENT>if other_database.has_reaction(reaction_id):<EOL><INDENT>return True<EOL><DEDENT><DEDENT>return False<EOL>
Whether reaction in database is shadowed by another database