cleanup formatting

Author: fkneeland-figure

types/utils.go

@@ -305,7 +305,7 @@ func UnmarshalMap(metadata map[string]interface{}, output interface{}) error {
 func ExtractAmount(
 	balances []*Amount,
 	currency *Currency,
-) (*Amount) {
+) *Amount {
 	for _, b := range balances {
 		if Hash(b.Currency) != Hash(currency) {
 			continue