nl_tokens: Defines the limits where to start or stop the stickiness
pl_tokens: function getStartStopBoundaries ( parent , sidebar , topOffset ) { const bbox = parent . getBoundingClientRect ( ) ; const sidebarBbox = sidebar . getBoundingClientRect ( ) ; const bodyBbox = document . body . getBoundingClientRect ( ) ; const containerAbsoluteTop = bbox . top - bodyBbox . top ; const sidebarAbsoluteTop = sidebarBbox . top - bodyBbox . top ; const marginTop = sidebarAbsoluteTop - containerAbsoluteTop ; const start = containerAbsoluteTop - topOffset ; const stop = bbox . <mask> + containerAbsoluteTop - sidebarBbox . height - marginTop - topOffset ; return { start , stop , } ; }