public Map<R, V> column(@ParametricNullness C columnKey) {
      synchronized (mutex) {
        return map(delegate().column(columnKey), mutex);
      }
    }

    @Override
    public Set<Cell<R, C, V>> cellSet() {
      synchronized (mutex) {
        return set(delegate().cellSet(), mutex);
      }
    }

    @Override
    public Set<R> rowKeySet() {
      synchronized (mutex) {

   background-color: lighten($dark, 10%);\n  }\n  .jsgrid-edit-row > .jsgrid-cell,\n  .jsgrid-filter-row > .jsgrid-cell,\n  .jsgrid-grid-body, .jsgrid-grid-header,\n  .jsgrid-header-row > .jsgrid-header-cell,\n  .jsgrid-insert-row > .jsgrid-cell,\n  .jsgrid-row > .jsgrid-cell,\n  .jsgrid-alt-row > .jsgrid-cell {\n    border-color: $gray-600;\n  }\n  .jsgrid-header-row > .jsgrid-header-cell,\n  .jsgrid-row > .jsgrid-cell {\n    background-color: $dark;\n  }\n  .jsgrid-alt-row > .jsgrid-cell {\n  ...

.irs-line{background-color:#4b545c}.dark-mode .jsgrid-alt-row>.jsgrid-cell,.dark-mode .jsgrid-edit-row>.jsgrid-cell,.dark-mode .jsgrid-filter-row>.jsgrid-cell,.dark-mode .jsgrid-grid-body,.dark-mode .jsgrid-grid-header,.dark-mode .jsgrid-header-row>.jsgrid-header-cell,.dark-mode .jsgrid-insert-row>.jsgrid-cell,.dark-mode .jsgrid-row>.jsgrid-cell{border-color:#6c757d}.dark-mode .jsgrid-header-row>.jsgrid-header-cell,.dark-mode .jsgrid-row>.jsgrid-cell{background-color:#343a40}.dark-mode .jsgrid-alt-row>.jsgr...

numeric offsets.\n * @function\n * @memberof {modifiers~offset}\n * @private\n * @argument {String} offset\n * @argument {Object} popperOffsets\n * @argument {Object} referenceOffsets\n * @argument {String} basePlacement\n * @returns {Array} a two cells array with x and y offsets in numbers\n */\nexport function parseOffset(\n  offset,\n  popperOffsets,\n  referenceOffsets,\n  basePlacement\n) {\n  const offsets = [0, 0];\n\n  // Use height if placement is left or right and index is 0 otherwise use...