class RuboCop::Cop::Style::ZeroLengthPredicate

def check_zero_length_predicate(node)
  zero_length_predicate = zero_length_predicate(node)
  return unless zero_length_predicate
  lhs, opr, rhs = zero_length_predicate
  add_offense(
    node,
    message: format(ZERO_MSG, lhs: lhs, opr: opr, rhs: rhs)
  )
end