human
Solve the following python programming problem given the following code:
@ rerun_if_locked 
def _store_stream(self, stream_hash, name, key, suggested_file_name) : 
    d = self.db_conn.runQuery ('insert into lbry_files values (?, ?, ?, ?)', (stream_hash, name, name, suggested_file_name)) 
    def check_duplicate(err) : 
        if err.check (sqlite3.IntegrityError) : 
            raise DuplicateStreamHashError (stream_hash) 
return err 
d.addErrback (check_duplicate) 
    return d 

    
    

    Fix the buggy line: d = self.db_conn.runQuery ('insert into lbry_files values (?, ?, ?, ?)', (stream_hash, name, name, suggested_file_name))
assistant
#Here is Python code to fix the buggy line: d = self.

d = self.db_conn.runQuery ('insert into lbry_files values (?, ?, ?, ?)', (stream_hash, key, name, suggested_file_name))