retrieve_pool_options

# File activesupport/lib/active_support/cache.rb, line 201
          def retrieve_pool_options(options)
            if options.key?(:pool)
              pool_options = options.delete(:pool)
            else
              pool_options = true
            end

            case pool_options
            when false, nil
              return false
            when true
              pool_options = DEFAULT_POOL_OPTIONS
            when Hash
              pool_options[:size] = Integer(pool_options[:size]) if pool_options.key?(:size)
              pool_options[:timeout] = Float(pool_options[:timeout]) if pool_options.key?(:timeout)
              pool_options = DEFAULT_POOL_OPTIONS.merge(pool_options)
            else
              raise TypeError, "Invalid :pool argument, expected Hash, got: #{pool_options.inspect}"
            end

            pool_options unless pool_options.empty?
          end