fn hkdfExpandLabel(comptime Hkdf: type, key: [Hkdf.prk_length]u8, label: []const u8, context: []const u8, comptime len: usize) [len]u8

Parameters

Hkdf: type,
key: [Hkdf.prk_length]u8,
label: []const u8,
context: []const u8,
len: usize,