import argparse
from typing import Dict, List

def get_instruments(args: argparse.Namespace, config: Dict) -> List[Dict[str, str]]:

    instruments = [
        {
            "symbol": inst.split(":")[0],
            "instrument_type": inst.split(":")[1],
            "exchange_id": inst.split(":")[2],
            "instrument_id_pfx": config["market_data_loading"][inst.split(":")[1]][
                "instrument_id_pfx"
            ],
            "db_table_name": config["market_data_loading"][inst.split(":")[1]][
                "db_table_name"
            ],
        }
        for inst in args.instruments.split(",")
    ]
    return instruments