Resolve Payout Transactions API
Payout Transactions are the individual transactions like customer payments, Resolve advances, forwarded payments, etc. that are rolled into a Payout. Each Payout is the sum of one or more transactions. Note that certain fields are only relevant to certain transaction types - e.g.: a Payout Transaction of type `monthly_fee` will have both `customer_id` and `invoice_id` set to `null`.