Translate to Russian (русский язык).

Language code: ru.

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Use a neutral tone (not overly formal or informal).

Use correct Russian grammar — appropriate cases, suffixes, and endings depending on context.

For the following technical terms, use these specific translations to ensure consistency and clarity across the documentation:

    // (H) Korean (Hangul syllables)
    testEncodeDecode(
      unicode = "세계의모든사람들이한국어를이해한다면얼마나좋을까",
      punycode = "xn--989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5jpsd879ccm6fea98c",
    )

    // (I) Russian (Cyrillic)
    testEncodeDecode(
      unicode = "почемужеонинеговорятпорусски",
      punycode = "xn--b1abfaaepdrnnbgefbadotcwatmq2g4l",
    )

    // (J) Spanish
    testEncodeDecode(