Cargo Features

Iso639_1 has no features set by default.

[dependencies]
iso639-1 = { version = "0.4.1", features = ["strum", "serde"] }

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strum

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Enables strum ^0.24 and strum_macros ^0.24

Features from optional dependencies

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serde implicit feature

Enables serde

serde:

A generic serialization/deserialization framework