+:12:
+ Only applicable to BER encoded data. Indefinite length encoding mark.
+:13:
+ Only applicable to BER encoded data. If object has BER-specific
+ encoding, then ``BER`` will be shown. It does not depend on indefinite
+ length encoding. ``EOC``, ``BOOLEAN``, ``BIT STRING``, ``OCTET STRING``
+ (and its derivatives) could be BERed.