special type of validator: we say that it’s not specified
# File lib/apipie/validator.rb, line 226 def description nil end
# File lib/apipie/validator.rb, line 216 def validate(value) true end
# File lib/apipie/validator.rb, line 220 def self.build(param_description, argument, options, block) if argument == :undef self.new(param_description) end end