class RuboCop::Cop::Sorbet::ValidSigil

def check_strictness_level(sigil, strictness)
  return true unless minimum_strictness
  minimum_level = STRICTNESS_LEVELS.index(minimum_strictness)
  current_level = STRICTNESS_LEVELS.index(strictness)
  if current_level < minimum_level
    add_offense(
      sigil,
      location: sigil.pos,
      message: "Sorbet sigil should be at least `#{minimum_strictness}` got `#{strictness}`."
    )
    return false
  end
  true
end