Caching.

src/snek/system/cache.py

@@ -0,0 +1,17 @@
+
+import functools 
+
+cache = functools.cache
+
+def async_cache(func):
+    cache = {}
+
+    @functools.wraps(func)
+    async def wrapper(*args):
+        if args in cache:
+            return cache[args]
+        result = await func(*args)
+        cache[args] = result
+        return result
+
+    return wrapper