diff --git a/src/drive/storage/index.ts b/src/drive/storage/index.ts
index ce40550..5273d11 100644
--- a/src/drive/storage/index.ts
+++ b/src/drive/storage/index.ts
@@ -663,6 +663,12 @@ export class Storage {
     return this.client.get(`/folders/${uuid}/tree`, this.headers());
   }
 
+  /**
+   * Checks if the given files already exist in the given folder.
+   *
+   * @param {CheckDuplicatedFilesPayload} payload - Payload containing the folder UUID and the list of files to check.
+   * @return {Promise<CheckDuplicatedFilesResponse>} - Promise that contains the duplicated files in a list.
+   */
   public checkDuplicatedFiles({
     folderUuid,
     filesList,
@@ -676,6 +682,12 @@ export class Storage {
     );
   }
 
+  /**
+   * Checks if the given folders names already exist in the given folder
+   *
+   * @param {CheckDuplicatedFolderPayload} payload - Payload containing the folder UUID and the list of folders to check.
+   * @return {Promise<CheckDuplicatedFoldersResponse>} - Promise that contains the duplicated folders in a list.
+   */
   public checkDuplicatedFolders({
     folderUuid,
     folderNamesList,