## Notes { #notes }

When you return a `Response` directly its data is not validated, converted (serialized), or documented automatically.

But you can still document it as described in [Additional Responses in OpenAPI](additional-responses.md){.internal-link target=_blank}.

    Unicode U+2018 (LEFT SINGLE QUOTATION MARK) and Unicode U+2019 (RIGHT SINGLE QUOTATION MARK)

"code snippet"

    Also called "inline code". Text in a Markdown document which is surrounded by single backticks. A paragraph in a Markdown document can have a more than one code snippet.

    Example:

        «««
        `i am a code snippet`
        »»»

    Example:

        «««

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(QueryFieldConfig.class);

    /** Field name for document score in search results */
    public static final String SCORE_FIELD = "score";

    /** Field name for OpenSearch document score */
    public static final String DOC_SCORE_FIELD = "_score";

    /** Field name for site information in search results */

errors.blank_password = Password is required.
errors.invalid_confirm_password = Does not match a confirmation password.
errors.cannot_delete_doc_because_of_running = A crawler is running. You cannot delete documents.
errors.failed_to_delete_doc_in_admin = Failed to delete a document.
errors.failed_to_send_testmail=Failed to send a test mail.
errors.invalid_query_unknown = The specified query has an unknown condition.

errors.blank_password = Password is required.
errors.invalid_confirm_password = Does not match a confirmation password.
errors.cannot_delete_doc_because_of_running = A crawler is running. You cannot delete documents.
errors.failed_to_delete_doc_in_admin = Failed to delete a document.
errors.failed_to_send_testmail=Failed to send a test mail.
errors.invalid_query_unknown = The specified query has an unknown condition.

///

It will:

* Return that status code in the response.
* Document it as such in the OpenAPI schema (and so, in the user interfaces):

<img src="/img/tutorial/response-status-code/image01.png">

/// note

import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.w3c.dom.Node;

/**
 * The XPathAPI class provides methods to evaluate XPath expressions and select nodes or node lists from an XML document.
 * It uses the javax.xml.xpath.XPath and javax.xml.xpath.XPathFactory classes to create and evaluate XPath expressions.
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * XPathAPI xPathAPI = new XPathAPI();

	if len(r) == 0 {
		return "", false
	}
	return string(r[1:]), true
}

func evalSQLSubstring(s string, startIdx, length int) (res string, err error) {
	rs := []rune(s)

	// According to s3 document, if startIdx < 1, it is set to 1.
	if startIdx < 1 {
		startIdx = 1
	}

	if startIdx > len(rs) {
		startIdx = len(rs) + 1
	}

	// StartIdx is 1-based in the input
	startIdx--

But a variable like `user-agent` is invalid in Python.

So, by default, `Header` will convert the parameter names characters from underscore (`_`) to hyphen (`-`) to extract and document the headers.

Also, HTTP headers are case-insensitive, so, you can declare them with standard Python style (also known as "snake_case").

   */
  var typeHint: Any?
    get() = typeHintStack.lastOrNull()
    set(value) {
      typeHintStack[typeHintStack.size - 1] = value
    }

  /** Names leading to the current location in the ASN.1 document. */
  private val path = mutableListOf<String>()

  /**
   * False unless we made a recursive call to [write] at the current stack frame. The explicit box