1try:
2    import uio
3except ImportError:
4    print("SKIP")
5    raise SystemExit
6
7import micropython
8
9data = b"1234" * 16
10buf = uio.BytesIO(64)
11
12micropython.heap_lock()
13
14buf.write(data)
15
16micropython.heap_unlock()
17
18print(buf.getvalue())
19