Missing class .u-shift--left--1-col--at-xlarge

[eduludi]

In ArchivePage template's there is a reference to a class u-shift--left--1-col--at-xlarge:

alps/source/_patterns/03-templates/archive-page.json

Line 19 in e2634d3

"column_classes": "l-grid-item--5-col l-grid-item--l--4-col l-grid-item--xl--6-col u-shift--right--1-col--at-large u-shift--left--1-col--at-xlarge u-no-gutters ",

In the CSS there are --at-large and --at-xxlarge, but no --at-xlarge. Should it be added to the CSS? Or another one was meant to be used here?