Initial stub: models, generator, parser, explainer, and demo

.venv/lib/python3.12/site-packages/pip/_internal/utils/datetime.py

@@ -0,0 +1,11 @@
+"""For when pip wants to check the date or time.
+"""
+
+import datetime
+
+
+def today_is_later_than(year: int, month: int, day: int) -> bool:
+    today = datetime.date.today()
+    given = datetime.date(year, month, day)
+
+    return today > given