class RuboCop::Cop::Sorbet::EnforceSignatures

def signature_style
  config_value = cop_config["Style"]
  if config_value
    unless VALID_STYLES.include?(config_value)
      raise ArgumentError, "Invalid Style option: '#{config_value}'. Valid options are: #{VALID_STYLES.join(", ")}"
    end
    return config_value
  end
  return "both" if allow_rbs?
  "sig"
end