Braintree\MerchantAccountGateway::detectSignature PHP Method

    public static function detectSignature($attribs)
    {
        if (isset($attribs['applicantDetails'])) {
            trigger_error("DEPRECATED: Passing applicantDetails to create is deprecated. Please use individual, business, and funding", E_USER_NOTICE);
            return self::createDeprecatedSignature();
        } else {
            return self::createSignature();
        }
    }