The type of transaction: ach_transfer_debit_outbound,ach_transfer_debit_inbound,ach_transfer_credit_outbound,ach_transfer_credit_inbound,ach_transfer_non_monetary_outbound,ach_transfer_non_monetary_inbound,rtp_rfp_outbound,rtp_rfp_inbound,funding_topup,transfer, transfer_reversal, balance_transfer_inbound, balance_transfer_outbound, funding_payout, rtp_transfer_inbound_return, rtp_transfer_outbound_return, rtp_transfer_inbound, rtp_transfer_outbound, fednow_transfer_inbound_return, fednow_transfer_outbound_return, fednow_transfer_inbound, fednow_transfer_outbound, ach_transfer_debit_outbound_return, ach_transfer_debit_inbound_return, ach_transfer_credit_outbound_return, or ach_transfer_credit_inbound_return