class RuboCop::Cop::Layout::SpaceInsideArrayLiteralBrackets

def multi_dimensional_array?(node, token, side: :right)
  offset = side == :right ? -1 : +1
  i = index_for(node, token) + offset
  i += offset while processed_source.tokens_within(node)[i].new_line?
  if side == :right
    processed_source.tokens_within(node)[i].right_bracket?
  else
    processed_source.tokens_within(node)[i].left_array_bracket?
  end
end