class RuboCop::Cop::Layout::MultilineBlockLayout

def autocorrect(node)
  lambda do |corrector|
    unless args_on_beginning_line?(node)
      autocorrect_arguments(corrector, node)
      expr_before_body = node.arguments.source_range.end
    end
    return unless node.body
    expr_before_body ||= node.loc.begin
    if expr_before_body.line == node.body.first_line
      autocorrect_body(corrector, node, node.body)
    end
  end
end