How to set the report type id in the reportRuns create method?

[bwfrieds]

I'm trying to follow the nodejs api examples but I'm lost. Here is all of my test dart file.

`//
import 'package:stripedart/stripedart.dart' as sd;

const liveApiKey = 'sk_live_your_key_here';

void main() {
final start = DateTime(2020, 7, 1, 0, 0, 0, 0, 0); // q3 start
final end = DateTime(2020, 9, 25, 0, 0, 0, 0, 0); // q3 end
final payouts4 = 'payout_reconciliation.itemized.4';
final columns = [
'created',
'charge_created',
'created_utc',
'charge_created_utc',
'payment_intent_id',
'automatic_payout_id',
'gross',
'fee',
'net'
];

var paramsMap1 = <String, dynamic>{}
..putIfAbsent('report_type', () => 'payouts.itemized.1') // probably incorrect
..putIfAbsent('interval_start', () => truncateLast3(start.millisecondsSinceEpoch.toString()))
..putIfAbsent('interval_end', () => truncateLast3(end.millisecondsSinceEpoch.toString()));

var paramsMap2 = <String, dynamic>{}
..putIfAbsent('report_type', () => payouts4) // probably incorrect
..putIfAbsent('timezone', () => 'America/Chicago') // valid with cUrl
..putIfAbsent('interval_start', () => truncateLast3(start.millisecondsSinceEpoch.toString()))
..putIfAbsent('interval_end', () => truncateLast3(end.millisecondsSinceEpoch.toString()))
..putIfAbsent('columns', () => columns);

var stripe = sd.Stripe(liveApiKey);

// how do I set the report type id properly?
stripe.reportRuns.create(params: paramsMap1).then((jsonResponse) => print(jsonResponse));
stripe.reportRuns.create(params: paramsMap2).then((jsonResponse) => print(jsonResponse));
}

String truncateLast3(final String s) {
//
return s.substring(0, s.length - 3);
}
`
I just keep getting errors for unknown parameters.

[bwfrieds]

I can send you the curl equivalent, if that would be helpful. They run fine with curl.