Sandbox.create fails with timeout=None when attempting to create a persistent sandbox

[yesyyesy]

Hi OpenSandbox team,
I am trying to create a permanent (persistent) sandbox instance that does not automatically expire. However, when I pass timeout=None to Sandbox.create, it raises an AttributeError.
from opensandbox import Sandbox

sandbox = await Sandbox.create(
image,
connection_config=config,
env={
"PYTHON_VERSION": python_version,
"VNC_PASSWORD": vnc_password,
},
timeout=None, # Attempting to set no timeout for a persistent sandbox
)

'NoneType' object has no attribute 'total_seconds'

Expected Behavior:
I expected that passing timeout=None would create a sandbox without an idle timeout or execution limit, allowing it to persist until explicitly destroyed.
Question:
Is creating a truly permanent sandbox supported in the current version?
If timeout=None is not the correct way to achieve this, what is the recommended parameter or configuration to create a long-running/persistent sandbox?
If this is a bug, could you please advise on a workaround or fix?
Thank you for your help!

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