def waves_transaction_web_link_factory(waves_chain: str):
    """Provides default value for WAVES_TRANSACTION_WEB_LINK depending on WAVES_CHAIN."""
    if waves_chain == 'testnet':
        return 'https://testnet.wavesexplorer.com/tx/{{tx}}'
    else:
        return 'https://wavesexplorer.com/tx/{{tx}}'