feat: adding samples to start/stop/reset operations

[m-strzelczyk]

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b/192839790

Will be added to this page

[snippet-bot]

Here is the summary of changes.

You are about to add 4 region tags.

• samples/snippets/sample_start_stop.py:23, tag compute_start_instance
• samples/snippets/sample_start_stop.py:43, tag compute_start_enc_instance
• samples/snippets/sample_start_stop.py:79, tag compute_stop_instance
• samples/snippets/sample_start_stop.py:99, tag compute_reset_instance

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[m-strzelczyk]

@engelke can you have a look?

[m-strzelczyk]

The tests should be finally fixed now. @engelke can you review?

[engelke]

LGTM