fn labeled_expand<const L: usize>(
suite_id: LabeledSuiteId,
expander: Box<dyn HkdfExpander>,
label: Label,
kem_context: &[u8],
) -> [u8; L]
fn labeled_expand<const L: usize>(
suite_id: LabeledSuiteId,
expander: Box<dyn HkdfExpander>,
label: Label,
kem_context: &[u8],
) -> [u8; L]