Seed strength in bits. 128 bits → 12 words, 256 bits → 24 words.
Intermediate strengths (160/192/224 → 15/18/21 words) are valid
BIP39 strengths but intentionally NOT exposed by this API; extend
the union deliberately if ever needed (BREAKING for exhaustiveness
checks).
Seed strength in bits. 128 bits → 12 words, 256 bits → 24 words. Intermediate strengths (160/192/224 → 15/18/21 words) are valid BIP39 strengths but intentionally NOT exposed by this API; extend the union deliberately if ever needed (BREAKING for exhaustiveness checks).