fix(pagination): check if page data is empty in GetNextPage

Author: stainless-app[bot]

packages/pagination/pagination.go

@@ -43,6 +43,9 @@ func (r *Page[T]) UnmarshalJSON(data []byte) error {
 // there is no next page, this function will return a 'nil' for the page value, but
 // will not return an error
 func (r *Page[T]) GetNextPage() (res *Page[T], err error) {
+	if len(r.Data) == 0 {
+		return nil, nil
+	}
 	// This page represents a response that isn't actually paginated at the API level
 	// so there will never be a next page.
 	cfg := (*requestconfig.RequestConfig)(nil)
@@ -137,6 +140,10 @@ func (r *CursorPage[T]) UnmarshalJSON(data []byte) error {
 // there is no next page, this function will return a 'nil' for the page value, but
 // will not return an error
 func (r *CursorPage[T]) GetNextPage() (res *CursorPage[T], err error) {
+	if len(r.Data) == 0 {
+		return nil, nil
+	}
+
 	if r.JSON.HasMore.Valid() && r.HasMore == false {
 		return nil, nil
 	}