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AI-generatedLimits on retrying writes without duplication in Rust's retry crate
Rust developers often need to retry fallible operations while guaranteeing that a write side‑effect occurs only once. The retry crate (v0.2.0) supplies a Retry struct and a RetryFn helper that repeatedly invoke a closure until success or policy exhaustion. To avoid duplicate writes, the operation closure typically performs an idempotency guard—such as checki