Cert Verifier with external explorer APIs

Has anyone tried Cert Verifier JS with options to pass Explorer API implementation as an argument. I can see the documentation however when I tried to pass implementation it gives an error. Below is the code. and error I am getting is “One or more of your custom explorer APIs does not have a parsing function”

var myOptions = {
                        serviceName: "BlockCypherTest",
                        parsingFunction: function (e) {
                            if (e.confirmations < mr) throw new Yn(Gt, mn("errors", "parseBlockCypherResponse"));
                            const t = Qf(e.received), r = e.outputs, n = r[r.length - 1], i = e.inputs[0].addresses[0];
                            return { remoteHash: oN(n.script, hr.bitcoin.prefixes), issuingAddress: i, time: t, revokedAddresses: r.filter(e => !!e.spent_by).map(e => e.addresses[0]) }
                        priority: 1,
                            main: "https://api.blockcypher.com/v1/btc/main/txs/{transaction_id}?limit=500",
                            test: "https://api.blockcypher.com/v1/btc/test3/txs/{transaction_id}?limit=500"

            const certificate = new Verifier.Certificate(this.certJSON, myOptions);

Thanks a lot for fixing the issue.