got multiple values for argument 'schema' – Postgresql

    self.engine=create_engine("postgresql://postgres:12345@localhost/postgres")
            self.con = self.engine.connect()
            self.conn.autocommit = True
            self.cursor = self.conn.cursor()

     
df.to_sql(symbol, schema='xxx', con=self.con, if_exists='append',
                      index=False)


    df.to_sql(symbol, con=self.con, if_exists='append',
                      index=False)

I am getting this error in both cases while adding the dataframe to the postgre sql database

meta = MetaData(self.connectable, schema=schema)

TypeError: init() got multiple values for argument ‘schema’