folder/list - Returns a list of folders.parent_id - The ID of the parent folder.[{id: <number> - The ID of one of the folders.name: <string> - The name of the folder.insert_time: <number> - The Unix timestamp of when the folder was created.rename_time: <number> - The Unix timestamp of when the folder was last renamed.}]PARENT_FOLDER_NOT_FOUND - A parent folder with the ID doesn't exist.