Instances of the asn1.NULL class have the following methods:
The encode method converts the content of the class instance into BER octet-stream (string). The value parameter, whenever given, must be a false value.
The decode method attempts to convert the data octet-stream (string) into an null value, and returns a tuple of (null_class_instance, rest).
Any unprocessed part of data octet-stream is returned in the rest string.
The data octet-stream must carry an ASN.1 NULL value or an exception would be thrown.
The update method assigns the value to class instance payload. The value must be false.
Class instance invocation would return currently stored payload.
Class instances may be compared against each other. The comparation would return negative if other is greater, zero on equivalence, positive if other is less.
Returns the canonical string representation of the class instance.
Returns a nice string representation of the class instance.