Function make_access_token_secrets 

pub fn make_access_token_secrets<Ids: KeySlotIds>(
    ctx: &mut KeyStoreContext<'_, Ids>,
    organization_key: Ids::Symmetric,
    kind: AccessTokenKind,
) -> Result<AccessTokenSecrets, AccessTokenError>

Generates the registration secrets for a kind access token.

A missing organization_key surfaces as AccessTokenError::Crypto.