code: def option(opt)
        opt = opt.to_sym
  
        options.each do |op|
          if op.short === opt or op.long === opt
            return op.value
          end
        end
      end
docs: Returns the value of a given option. The option can be specified using
   either the short or long name.
  
   @example
    puts "Hello #{option(:name)}
  
   @author Yorick Peterse
   @since  0.1
   @param  [#to_sym] opt The name of the option.
   @return [Mixed]