Pagination: onPageSizeChange required but not needed with hidePageSizeSelect

[edoardo]

I'm using the Pagination widget with the hidePageSizeSelect, but I'm getting a warning about onPageSizeChange being required.
Currently to silence the warning I'm doing this:

<Pagination
     page={page}
     pageCount={pager.pageCount}
     pageSize={pager.pageSize}
     total={pager.total}
     onPageChange={onPageChange}
     onPageSizeChange={Function.prototype}                                                                                                                                                                  
     hidePageSizeSelect
     pageSummaryText={interpolationObject =>
         i18n.t(
             '{{firstItem}}-{{lastItem}} of {{total}}',
             interpolationObject
         )
     }
 />

Should onPageSizeChange not be a required prop?

[varl]

Will check, but I think it can be optional.