reduced code repetition

I am not wondering how i will make the piece move

animation_test.py

@@ -0,0 +1,11 @@
+from superturtle.animation import animate
+from turtle import forward, right
+
+def square(side_length):
+    for side in range(4):
+        forward(side_length)
+        right(90)
+
+for frame in animate(40, loop=True):
+    size = frame.interpolate(50, 100, mirror=True)
+    square(size)