If you specify a value for Limit and you have more XssMatchSet objects
than the value of Limit, AWS WAF returns a NextMarker value in the
response that allows you to list another group of XssMatchSets. For
the second and subsequent ListXssMatchSets requests, specify the value
of NextMarker from the previous response to get information about
another batch of XssMatchSets.
Limit
Specifies the number of XssMatchSet objects that you want AWS WAF to
return for this request. If you have more XssMatchSet objects than the
number you specify for Limit, the response includes a NextMarker
value that you can use to get another batch of Rules.