code: function grabClassNames (cell) {
    const classNames = _.pickBy({
      cell: cell.className,
      value: cell.inputClassName,
      label: cell.labelClassName
    })
    if (_.size(classNames) > 0) {
      return classNames
    }
  }
docs: Creates class name block for v2 cell
  
  @param {object} cell Cell to get class names from
  @returns {object} Class name block for the cell