# File lib/blimpy/boxes/aws.rb, line 27
    def validate!
      if @region.nil?
        raise Blimpy::BoxValidationError, "Cannot spin up machine without a set region"
      end

      if fog.security_groups.get(@group).nil?
        raise Blimpy::BoxValidationError, "The security group '#{@group}' does not exist in #{@region}"
      end
    end