code: public List<List<String>> getFilteredNamedPolicy(String ptype, int fieldIndex, String... fieldValues) {
          return model.getFilteredPolicy("p", ptype, fieldIndex, fieldValues);
      }
docs: getFilteredNamedPolicy gets all the authorization rules in the named policy, field filters can be specified.
  
  @param ptype the policy type, can be "p", "p2", "p3", ..
  @param fieldIndex the policy rule's start index to be matched.
  @param fieldValues the field values to be matched, value ""
  means not to match this field.
  @return the filtered "p" policy rules of the specified ptype.