@codecademy/gamut

Index: package/dist/DatePicker/Calendar/utils/validation.d.ts
===================================================================
--- package/dist/DatePicker/Calendar/utils/validation.d.ts
+++ package/dist/DatePicker/Calendar/utils/validation.d.ts
@@ -0,0 +1,13 @@
+/**
+ * Validation helpers for DatePicker (single-date).
+ * Used to mark invalid dates as unselectable and for manual entry validation.
+ */
+/**
+ * Check if a date is in the past (before today at start of day).
+ * Useful for disabling past dates in the calendar.
+ */
+export declare const isPastDate: (date: Date) => boolean;
+/**
+ * Check if a date is valid (finite and not NaN).
+ */
+export declare const isValidDate: (date: Date) => boolean;