Replace map_err() conversions with a From call via the Try operator
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…ator The `?` or `Try` operator in the standard library calls `.into()` on the `Error` type before bubbling it up, allowing for natural conversions to other error types. `thiserror` supports marking such errors as `#[from]` (implying `#[source]`) to generate the necessary `From<>` implementation to facilitate automatic conversion from any specified `Error` type to the corresponding enum variant in our `thiserror` enums.
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The
?orTryoperator in the standard library calls.into()on theErrortype before bubbling it up, allowing for natural conversions to other error types.thiserrorsupports marking such errors as#[from](implying#[source]) to generate the necessaryFrom<>implementation to facilitate automatic conversion from any specifiedErrortype to the corresponding enum variant in ourthiserrorenums.