Update typescript interface
@@ -6,6 +6,7 @@ export interface List<T> extends Iterable<T> {
get __gleam_prelude_variant__(): "EmptyList" | "NonEmptyList";
head?: T;
tail?: List<T>;
+ prepend(head: T): List<T>;
inspect(): string;
toArray(): Array<T>;
atLeastLength(desired: number): boolean;
