public static PaginatedIndex of(Model model) {
        return model.getKnowledge(PaginatedIndex.class, PaginatedIndex::new);
    }
Index of operation shapes to paginated trait information.

<p>This index makes it easy to slice up paginated operations and
get the resolved members. This index performs some basic validation
of the paginated trait like ensuring that the operation has input
and output, and that the members defined in the paginated trait can
be found in the input or output of the operation. Additional
validation is performed in the {@link PaginatedTraitValidator}
(which makes use of this index).
smithy-model/src/main/java/software/amazon/smithy/model/knowledge/PaginatedIndex.java