func addTokenTransferInputs(op *fftypes.Operation, transfer *fftypes.TokenTransfer) {
	op.Input = fftypes.JSONObject{
		"id": transfer.LocalID.String(),
	}
}
Note: the counterpart to below (retrieveTokenTransferInputs) lives in the events package
package assets
import (
	"context"
	"fmt"
	"github.com/hyperledger/firefly/internal/i18n"
	"github.com/hyperledger/firefly/internal/sysmessaging"
	"github.com/hyperledger/firefly/pkg/database"
	"github.com/hyperledger/firefly/pkg/fftypes"
)