class Rubocop::Cop::EmptyLineBetweenDefs

def on_def(s)
  def_start = s.loc.keyword.line
  def_end = s.loc.end.line
  if @prev_def_end && (def_start - @prev_def_end) < 2
    add_offence(:convention, def_start, MSG)
  end
  @prev_def_end = def_end
  super
end