docs: improve PredictTextSentimentAnalysisSample

[wallind]

Description

Updates a code sample to have safe serialization of input which may come unsanitized.

Github Ticket(s)

Fixes #1097 ☕️

Checklist

• Make sure to open an issue as a bug/issue before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
• Ensure the tests and linter pass
• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

[wallind]

I thought about adding a test case for an input with ". Would that be worth it? I opted not to for my inital draft. lemme know.

[kurtisvg]

Tagging @Sita04 for initial review.

[Sita04]

Thanks for the changes. LGTM.

@kurtisvg Back to you again for the final review.

[wallind]

@kurtisvg is this waiting on anything to move forward? *following up here as it's been on my TODO: list to get this closed

[kurtisvg]

Looks like it's approved by the language reviewer (me + @Sita04) and just needs to be approved by a product reviewer (@googleapis/cdpe-cloudai)

[balajismaniam]

LGTM.

[kweinmeister]

Thank you for your contribution, and apologies for the delay in getting this merged @wallind.

We have actually migrated all of our Java samples to a centralized repo https://github.com/GoogleCloudPlatform/java-docs-samples, and will be deleting the samples here.

We can review and merge if you'd like to submit the PR there. Thanks again!

[wallind]

Thank you for your contribution, and apologies for the delay in getting this merged @wallind.

We have actually migrated all of our Java samples to a centralized repo https://github.com/GoogleCloudPlatform/java-docs-samples, and will be deleting the samples here.

We can review and merge if you'd like to submit the PR there. Thanks again!

@kweinmeister no problem. and done GoogleCloudPlatform/java-docs-samples#7562! can't wait to get this change added 😁

[wallind]

superseded by PR in the new repo GoogleCloudPlatform/java-docs-samples#7562