Merge pull request #38 from 1Password/support-prf-already-hashed-exte… #77

Job	Run time
Rustfmt (stable)	10s
Test (stable)	41s
Clippy (stable)	30s
Typeshare (stable, typescript)	43s
Typeshare (stable, kotlin)	42s
Typeshare (stable, swift)	43s
	3m 29s

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