# File lib/net/ssh/transport/hmac/abstract.rb, line 34
34:       def digest_class(*v)
35:         @digest_class = nil if !defined?(@digest_class)
36:         if v.empty?
37:           @digest_class = superclass.digest_class if @digest_class.nil? && superclass.respond_to?(:digest_class)
38:           return @digest_class
39:         elsif v.length == 1
40:           @digest_class = v.first
41:         else
42:           raise ArgumentError, "wrong number of arguments (#{v.length} for 1)"
43:         end
44:       end