diff --git a/lib/Parser.php b/lib/Parser.php
index 08e4cbc..e36d620 100644
--- a/lib/Parser.php
+++ b/lib/Parser.php
@@ -51,6 +51,14 @@ class Parser {
         return static::parseDocumentOrFragment($data, $encodingOrContentType, null, null, $config ?? new Config);
     }
 
+    /** Parses a string to produce a partial document (a document fragment)
+     * 
+     * @param \DOMElement $contextElement The context element. The fragment will be pparsed as if it is a collection of children of this element
+     * @param int|null $quirksMode The "quirks mode" property of the context element's document. Must be one of Parser::NO_QUIRKS_MODE, Parser::LIMITED_QUIRKS_MODE, or Parser::QUIRKS_MODE
+     * @param string $data The string to parse. This may be in any valid encoding
+     * @param string|null $encodingOrContentType The document encoding, or HTTP Content-Type header value, if known. If no provided encoding detection will be attempted
+     * @param \MensBeam\HTML\Parser\Config|null $config The configuration parameters to use, if any
+     */
     public static function parseFragment(\DOMElement $contextElement, ?int $quirksMode, string $data, ?string $encodingOrContentType = null, ?Config $config = null): \DOMDocumentFragment {
         // parse the fragment into a temporary document
         $out = self::parseDocumentOrFragment($data, $encodingOrContentType, $contextElement, $quirksMode, $config ?? new Config);
diff --git a/lib/Parser/Output.php b/lib/Parser/Output.php
index 100c57c..5068800 100644
--- a/lib/Parser/Output.php
+++ b/lib/Parser/Output.php
@@ -7,8 +7,12 @@ declare(strict_types=1);
 namespace MensBeam\HTML\Parser;
 
 class Output {
+    /** @var \DOMDocument The parsed document */
     public $document;
+    /** @var string The document's original encoding, as supplied by the user or detected during parsing */
     public $encoding;
+    /** @var int The "quirks mode" property of the document, one of Parser::NO_QUIRKS_MODE, Parser::LIMITED_QUIRKS_MODE, or Parser::QUIRKS_MODE */
     public $quirksMode;
+    /** @var array|null The list of parse errors emitted during processing if parse error reporting was turned on */
     public $errors = null;
-}
\ No newline at end of file
+}