nl_tokens: exceptBounds : If set don t remove any markers / clusters in it
pl_tokens: function ( previousBounds , zoomLevel , exceptBounds ) { var m , i ; this . _recursively ( previousBounds , - 1 , zoomLevel - 1 , function ( c ) { //Remove markers at every level for ( i = c . _markers . length - 1 ; i >= 0 ; i -- ) { m = c . _markers [ i ] ; if ( ! exceptBounds || ! exceptBounds . contains ( m . _latlng ) ) { c . _group . _featureGroup . removeLayer ( m ) ; if ( m . setOpacity ) { m . setOpacity ( 1 ) ; } } } } , function ( c ) { //Remove child clusters at just the bottom level for ( i = c . _childClusters . <mask> - 1 ; i >= 0 ; i -- ) { m = c . _childClusters [ i ] ; if ( ! exceptBounds || ! exceptBounds . contains ( m . _latlng ) ) { c . _group . _featureGroup . removeLayer ( m ) ; if ( m . setOpacity ) { m . setOpacity ( 1 ) ; } } } } ) ; }