@spec extension(
  t(),
  X509.CRL.Extension.extension_id() | :public_key.oid()
) :: X509.CRL.Extension.t() | nil

Looks up a specific extension in a CRL entry.

The desired extension can be specified as an atom or an OID value. Returns nil if the specified extension is not present in the CRL entry.

@spec extensions(t()) :: [X509.CRL.Extension.t()]

Returns the list of extensions in a CRL entry.

@spec new(X509.Certificate.t() | pos_integer(), DateTime.t(), [X509.CRL.Extension.t()]) ::
  t()

Returns a new CRL entry for the given certificate or serial number. The revocation date must be specified, and additional metadata may be specified as one or more X509.CRL.Extension entries.

@spec revocation_date(t()) :: DateTime.t()

Returns the certificate recocation date for a CRL entry.

@spec serial(t()) :: pos_integer()

Returns the certificate serial number for a CRL entry.