class Tryouts::Drill::Dream

def comparison_value
  return @ret unless @ret.nil?
  @ret = case @format
  when :gt, :gte, :lt, :lte, :ne
    op = {:gt=>'>',:gte=>'>=', :lt=>'<', :lte => '<=', :ne => '!='}.find { |i| i[0] == @format }
    @output
  when :proc
    true
  when :respond_to?, :is_a?, :kind_of?
    true
  else 
    @output
  end
end