# File lib/snmp/varbind.rb, line 428
        def asn1_type
            'Null'
        end

# File lib/snmp/varbind.rb, line 420
        def decode(value_data)
            Null
        end

# File lib/snmp/varbind.rb, line 424
        def encode
            encode_null
        end

# File lib/snmp/varbind.rb, line 432
        def to_s
            asn1_type
        end