# File lib/net/ssh/transport/hmac/abstract.rb, line 10 def key_length(*v) @key_length = nil if !defined?(@key_length) if v.empty? @key_length = superclass.key_length if @key_length.nil? && superclass.respond_to?(:key_length) return @key_length elsif v.length == 1 @key_length = v.first else raise ArgumentError, "wrong number of arguments (#{v.length} for 1)" end end