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9
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### Bugs
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- No significant bugs found in the visible portion of the code.
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### Optimizations
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- Simplify the Codable conformance by making `AttachedImage` conform directly to `Codable` instead of using a nested struct for encoding/decoding.
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- Consider using `URL` type instead of `String` for the `url` property for better type safety and validation.
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### Good points
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- Adheres to Swift's best practices with the use of `public` access control.
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- Smart use of `Hashable` and `Sendable` protocols suggesting immutability and safety in concurrent programming contexts.
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- Clear and straightforward initialization method.
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### Summary
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The `AttachedImage` struct is well-designed with a focus on thread safety and immutability, as indicated by its conformance to `Sendable` and `Hashable`. The code is clean and concise, with only minor suggestions for improvement mainly around potential simplification and improved type safety.
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### Open source alternatives
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- **Kingfisher**: A powerful, pure-Swift library for downloading and caching images from the web.
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- **SDWebImage**: An asynchronous image downloader with cache support as a UIImageView category. |