fix: add docblocks to new methods

src/Posts/Type/Attachment.php

@@ -91,10 +91,22 @@
 			get => file_get_contents($this->post->guid);
 		}
 
+		/**
+		 * Set the pathname for this Attachemnt to a file on disk
+		 *
+		 * @param string $pathname
+		 * @return void
+		 */
 		public function set_attached_file(string $pathname): void {
 			PostMeta::new($this->post, self::META_KEY_WP_ATTACHED_FILE, $pathname);
 		}
 
+		/**
+		 * Set Attachemnt data from a file on disk
+		 *
+		 * @param string $file
+		 * @return void
+		 */
 		public function set_from_file(string $file): void {
 			if (!is_file($file)) {
 				throw new Exception("No file found at location '{$file}'");