E2B Python SDK 2.63.0 adds strict option to pause()

The release adds a strict flag to pause(), which defaults to false. When strict is set to true, a pause call fails with a ServiceBusyError or ServiceBusyException if the guest agent does not respond, and the sandbox stays up.

Without the flag, the API's default behavior applies: the memory snapshot is taken anyway and marked. The sandbox info exposes this mark as envd_unresponsive_at_pause, and resuming such a sandbox with on_resume set to "reboot" now raises GuestUnresponsiveException.

The change is listed as a minor change in the 2.63.0 release, which was published on 04 Nov.

Agent code that pauses sandboxes can now choose to fail fast instead of snapshotting a sandbox whose guest agent is unresponsive.

Code that resumes paused sandboxes with on_resume="reboot" should handle GuestUnresponsiveException, since such resumes now raise it when the pause was marked.