fix: drop `unwrap` from `from_proto`

[tusharmath]

from_proto contains a few unwrap. Remove them and use Valid type here. Make sure to use Valid::from_iter for when one needs to check iterables.

[tusharmath]

/bounty 25

[algora-pbc[bot]]

## 💎 $25 bounty • Tailcall Inc.

### Steps to solve: 1. Start working: Comment /attempt #1739 with your implementation plan 2. Submit work: Create a pull request including /claim #1739 in the PR body to claim the bounty 3. Receive payment: 100% of the bounty is received 2-5 days post-reward. Make sure you are eligible for payouts

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Attempt	Started (GMT+0)	Solution
🔴 @ssddOnTop	Apr 16, 2024, 6:53:23 AM	WIP
🟡 @emekaokoli19	Apr 18, 2024, 12:44:46 AM	WIP
🔴 @Rutik7066	Jun 11, 2024, 8:58:07 PM	WIP
🔴 @Shylock-Hg	Jul 24, 2024, 11:27:24 AM	WIP

[ssddOnTop]

/attempt

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[algora-pbc[bot]]

@ssddOnTop: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[algora-pbc[bot]]

[!NOTE] The user @ssddOnTop is already attempting to complete issue #1739 and claim the bounty. We recommend checking in on @ssddOnTop's progress, and potentially collaborating, before starting a new solution.

[algora-pbc[bot]]

@emekaokoli19: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[timburrows]

In the queue

[VasuDevrani]

is it still valid or fixed?

[Rutik7066]

/attempt #1739

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[algora-pbc[bot]]

[!NOTE] The user @emekaokoli19 is already attempting to complete issue #1739 and claim the bounty. We recommend checking in on @emekaokoli19's progress, and potentially collaborating, before starting a new solution.

[algora-pbc[bot]]

@Rutik7066: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[Shylock-Hg]

/attempt #1739

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@Shylock-Hg	8 tailcallhq bounties + 3 bounties from 3 projects	C++, C, Shell & more		Cancel attempt

[algora-pbc[bot]]

[!NOTE] The user @emekaokoli19 is already attempting to complete issue #1739 and claim the bounty. We recommend checking in on @emekaokoli19's progress, and potentially collaborating, before starting a new solution.

[Shylock-Hg]

@tusharmath Currently, there is only one unwrap called in from_proto.rs:138, and I think it will never panic because the container is not empty. Should we still remove it?

[algora-pbc[bot]]

@Shylock-Hg: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[github-actions[bot]]

Action required: Issue inactive for 30 days. Status update or closure in 7 days.

[github-actions[bot]]

Issue closed after 7 days of inactivity.