diff --git a/deluge/core/core.py b/deluge/core/core.py
index 1090b0f2a..1e5774ff1 100644
--- a/deluge/core/core.py
+++ b/deluge/core/core.py
@@ -14,6 +14,7 @@ import shutil
 import tempfile
 import threading
 from base64 import b64decode, b64encode
+from typing import Any, Dict, List, Optional, Tuple, Union
 from urllib.request import URLError, urlopen
 
 from twisted.internet import defer, reactor, task
@@ -240,13 +241,12 @@ class Core(component.Component):
         """Apply libtorrent session settings.
 
         Args:
-            settings (dict): A dict of lt session settings to apply.
-
+            settings: A dict of lt session settings to apply.
         """
         self.session.apply_settings(settings)
 
     @staticmethod
-    def _create_peer_id(version):
+    def _create_peer_id(version: str) -> str:
         """Create a peer_id fingerprint.
 
         This creates the peer_id and modifies the release char to identify
@@ -261,11 +261,10 @@ class Core(component.Component):
             ``--DE201b--`` (beta pre-release of v2.0.1)
 
         Args:
-            version (str): The version string in PEP440 dotted notation.
+            version: The version string in PEP440 dotted notation.
 
         Returns:
-            str: The formatted peer_id with Deluge prefix e.g. '--DE200s--'
-
+            The formatted peer_id with Deluge prefix e.g. '--DE200s--'
         """
         split = deluge.common.VersionSplit(version)
         # Fill list with zeros to length of 4 and use lt to create fingerprint.
@@ -314,12 +313,11 @@ class Core(component.Component):
                     log.info('Restoring backup of %s from: %s', filename, filepath_bak)
                     shutil.move(filepath_bak, filepath)
 
-    def _load_session_state(self):
+    def _load_session_state(self) -> dict:
         """Loads the libtorrent session state
 
         Returns:
-            dict: A libtorrent sesion state, empty dict if unable to load it.
-
+            A libtorrent sesion state, empty dict if unable to load it.
         """
         filename = 'session.state'
         filepath = get_config_dir(filename)
@@ -401,18 +399,19 @@ class Core(component.Component):
 
     # Exported Methods
     @export
-    def add_torrent_file_async(self, filename, filedump, options, save_state=True):
+    def add_torrent_file_async(
+        self, filename: str, filedump: str, options: dict, save_state: bool = True
+    ) -> defer.Deferred[Optional[str]]:
         """Adds a torrent file to the session asynchronously.
 
         Args:
-            filename (str): The filename of the torrent.
-            filedump (str): A base64 encoded string of torrent file contents.
-            options (dict): The options to apply to the torrent upon adding.
-            save_state (bool): If the state should be saved after adding the file.
+            filename: The filename of the torrent.
+            filedump: A base64 encoded string of torrent file contents.
+            options: The options to apply to the torrent upon adding.
+            save_state: If the state should be saved after adding the file.
 
         Returns:
-            Deferred: The torrent ID or None.
-
+            The torrent ID or None.
         """
         try:
             filedump = b64decode(filedump)
@@ -433,7 +432,9 @@ class Core(component.Component):
             return d
 
     @export
-    def prefetch_magnet_metadata(self, magnet, timeout=30):
+    def prefetch_magnet_metadata(
+        self, magnet: str, timeout: int = 30
+    ) -> defer.Deferred[Tuple[str, bytes]]:
         """Download magnet metadata without adding to Deluge session.
 
         Used by UIs to get magnet files for selection before adding to session.
@@ -441,12 +442,11 @@ class Core(component.Component):
         The metadata is bencoded and for transfer base64 encoded.
 
         Args:
-            magnet (str): The magnet URI.
-            timeout (int): Number of seconds to wait before canceling request.
+            magnet: The magnet URI.
+            timeout: Number of seconds to wait before canceling request.
 
         Returns:
-            Deferred: A tuple of (torrent_id (str), metadata (str)) for the magnet.
-
+            A tuple of (torrent_id (str), metadata (str)) for the magnet.
         """
 
         def on_metadata(result, result_d):
@@ -461,16 +461,18 @@ class Core(component.Component):
         return result_d
 
     @export
-    def add_torrent_file(self, filename, filedump, options):
+    def add_torrent_file(
+        self, filename: str, filedump: Union[str, bytes], options: dict
+    ) -> Optional[str]:
         """Adds a torrent file to the session.
 
         Args:
-            filename (str): The filename of the torrent.
-            filedump (str): A base64 encoded string of the torrent file contents.
-            options (dict): The options to apply to the torrent upon adding.
+            filename: The filename of the torrent.
+            filedump: A base64 encoded string of the torrent file contents.
+            options: The options to apply to the torrent upon adding.
 
         Returns:
-            str: The torrent_id or None.
+            The torrent_id or None.
         """
         try:
             filedump = b64decode(filedump)
@@ -486,16 +488,17 @@ class Core(component.Component):
             raise
 
     @export
-    def add_torrent_files(self, torrent_files):
+    def add_torrent_files(
+        self, torrent_files: List[Tuple[str, Union[str, bytes], dict]]
+    ) -> defer.Deferred[List[AddTorrentError]]:
         """Adds multiple torrent files to the session asynchronously.
 
         Args:
-            torrent_files (list of tuples): Torrent files as tuple of
-            ``(filename, filedump, options)``.
+            torrent_files: Torrent files as tuple of
+                ``(filename, filedump, options)``.
 
         Returns:
-            Deferred
-
+            A list of errors (if there were any)
         """
 
         @defer.inlineCallbacks
@@ -515,19 +518,19 @@ class Core(component.Component):
         return task.deferLater(reactor, 0, add_torrents)
 
     @export
-    def add_torrent_url(self, url, options, headers=None):
-        """
-        Adds a torrent from a URL. Deluge will attempt to fetch the torrent
+    def add_torrent_url(
+        self, url: str, options: dict, headers: dict = None
+    ) -> defer.Deferred[Optional[str]]:
+        """Adds a torrent from a URL. Deluge will attempt to fetch the torrent
         from the URL prior to adding it to the session.
 
-        :param url: the URL pointing to the torrent file
-        :type url: string
-        :param options: the options to apply to the torrent on add
-        :type options: dict
-        :param headers: any optional headers to send
-        :type headers: dict
+        Args:
+            url: the URL pointing to the torrent file
+            options: the options to apply to the torrent on add
+            headers: any optional headers to send
 
-        :returns: a Deferred which returns the torrent_id as a str or None
+        Returns:
+            a Deferred which returns the torrent_id as a str or None
         """
         log.info('Attempting to add URL %s', url)
 
@@ -553,55 +556,52 @@ class Core(component.Component):
         return d
 
     @export
-    def add_torrent_magnet(self, uri, options):
-        """
-        Adds a torrent from a magnet link.
+    def add_torrent_magnet(self, uri: str, options: dict) -> str:
+        """Adds a torrent from a magnet link.
 
-        :param uri: the magnet link
-        :type uri: string
-        :param options: the options to apply to the torrent on add
-        :type options: dict
-
-        :returns: the torrent_id
-        :rtype: string
+        Args:
+            uri: the magnet link
+            options: the options to apply to the torrent on add
 
+        Returns:
+            the torrent_id
         """
         log.debug('Attempting to add by magnet URI: %s', uri)
 
         return self.torrentmanager.add(magnet=uri, options=options)
 
     @export
-    def remove_torrent(self, torrent_id, remove_data):
+    def remove_torrent(self, torrent_id: str, remove_data: bool) -> bool:
         """Removes a single torrent from the session.
 
         Args:
-            torrent_id (str): The torrent ID to remove.
-            remove_data (bool): If True, also remove the downloaded data.
+            torrent_id: The torrent ID to remove.
+            remove_data: If True, also remove the downloaded data.
 
         Returns:
-            bool: True if removed successfully.
+            True if removed successfully.
 
         Raises:
              InvalidTorrentError: If the torrent ID does not exist in the session.
-
         """
         log.debug('Removing torrent %s from the core.', torrent_id)
         return self.torrentmanager.remove(torrent_id, remove_data)
 
     @export
-    def remove_torrents(self, torrent_ids, remove_data):
+    def remove_torrents(
+        self, torrent_ids: List[str], remove_data: bool
+    ) -> defer.Deferred[List[Tuple[str, str]]]:
         """Remove multiple torrents from the session.
 
         Args:
-            torrent_ids (list): The torrent IDs to remove.
-            remove_data (bool): If True, also remove the downloaded data.
+            torrent_ids: The torrent IDs to remove.
+            remove_data: If True, also remove the downloaded data.
 
         Returns:
-            list: An empty list if no errors occurred otherwise the list contains
-                tuples of strings, a torrent ID and an error message. For example:
-
-                [('<torrent_id>', 'Error removing torrent')]
+            An empty list if no errors occurred otherwise the list contains
+            tuples of strings, a torrent ID and an error message. For example:
 
+            [('<torrent_id>', 'Error removing torrent')]
         """
         log.info('Removing %d torrents from core.', len(torrent_ids))
 
@@ -625,17 +625,17 @@ class Core(component.Component):
         return task.deferLater(reactor, 0, do_remove_torrents)
 
     @export
-    def get_session_status(self, keys):
+    def get_session_status(self, keys: List[str]) -> Dict[str, Union[int, float]]:
         """Gets the session status values for 'keys', these keys are taking
         from libtorrent's session status.
 
         See: http://www.rasterbar.com/products/libtorrent/manual.html#status
 
-        :param keys: the keys for which we want values
-        :type keys: list
-        :returns: a dictionary of {key: value, ...}
-        :rtype: dict
+        Args:
+            keys: the keys for which we want values
 
+        Returns:
+            a dictionary of {key: value, ...}
         """
         if not keys:
             return self.session_status
@@ -656,13 +656,13 @@ class Core(component.Component):
         return status
 
     @export
-    def force_reannounce(self, torrent_ids):
+    def force_reannounce(self, torrent_ids: List[str]) -> None:
         log.debug('Forcing reannouncment to: %s', torrent_ids)
         for torrent_id in torrent_ids:
             self.torrentmanager[torrent_id].force_reannounce()
 
     @export
-    def pause_torrent(self, torrent_id):
+    def pause_torrent(self, torrent_id: str) -> None:
         """Pauses a torrent"""
         log.debug('Pausing: %s', torrent_id)
         if not isinstance(torrent_id, str):
@@ -671,7 +671,7 @@ class Core(component.Component):
             self.torrentmanager[torrent_id].pause()
 
     @export
-    def pause_torrents(self, torrent_ids=None):
+    def pause_torrents(self, torrent_ids: List[str] = None) -> None:
         """Pauses a list of torrents"""
         if not torrent_ids:
             torrent_ids = self.torrentmanager.get_torrent_list()
@@ -679,27 +679,27 @@ class Core(component.Component):
             self.pause_torrent(torrent_id)
 
     @export
-    def connect_peer(self, torrent_id, ip, port):
+    def connect_peer(self, torrent_id: str, ip: str, port: int):
         log.debug('adding peer %s to %s', ip, torrent_id)
         if not self.torrentmanager[torrent_id].connect_peer(ip, port):
             log.warning('Error adding peer %s:%s to %s', ip, port, torrent_id)
 
     @export
-    def move_storage(self, torrent_ids, dest):
+    def move_storage(self, torrent_ids: List[str], dest: str):
         log.debug('Moving storage %s to %s', torrent_ids, dest)
         for torrent_id in torrent_ids:
             if not self.torrentmanager[torrent_id].move_storage(dest):
                 log.warning('Error moving torrent %s to %s', torrent_id, dest)
 
     @export
-    def pause_session(self):
+    def pause_session(self) -> None:
         """Pause the entire session"""
         if not self.session.is_paused():
             self.session.pause()
             component.get('EventManager').emit(SessionPausedEvent())
 
     @export
-    def resume_session(self):
+    def resume_session(self) -> None:
         """Resume the entire session"""
         if self.session.is_paused():
             self.session.resume()
@@ -708,12 +708,12 @@ class Core(component.Component):
             component.get('EventManager').emit(SessionResumedEvent())
 
     @export
-    def is_session_paused(self):
+    def is_session_paused(self) -> bool:
         """Returns the activity of the session"""
         return self.session.is_paused()
 
     @export
-    def resume_torrent(self, torrent_id):
+    def resume_torrent(self, torrent_id: str) -> None:
         """Resumes a torrent"""
         log.debug('Resuming: %s', torrent_id)
         if not isinstance(torrent_id, str):
@@ -722,7 +722,7 @@ class Core(component.Component):
             self.torrentmanager[torrent_id].resume()
 
     @export
-    def resume_torrents(self, torrent_ids=None):
+    def resume_torrents(self, torrent_ids: List[str] = None) -> None:
         """Resumes a list of torrents"""
         if not torrent_ids:
             torrent_ids = self.torrentmanager.get_torrent_list()
@@ -755,7 +755,9 @@ class Core(component.Component):
         return status
 
     @export
-    def get_torrent_status(self, torrent_id, keys, diff=False):
+    def get_torrent_status(
+        self, torrent_id: str, keys: List[str], diff: bool = False
+    ) -> dict:
         torrent_keys, plugin_keys = self.torrentmanager.separate_keys(
             keys, [torrent_id]
         )
@@ -770,10 +772,10 @@ class Core(component.Component):
 
     @export
     @defer.inlineCallbacks
-    def get_torrents_status(self, filter_dict, keys, diff=False):
-        """
-        returns all torrents , optionally filtered by filter_dict.
-        """
+    def get_torrents_status(
+        self, filter_dict: dict, keys: List[str], diff: bool = False
+    ) -> dict:
+        """returns all torrents , optionally filtered by filter_dict."""
         all_keys = not keys
         torrent_ids = self.filtermanager.filter_torrent_ids(filter_dict)
         status_dict, plugin_keys = yield self.torrentmanager.torrents_status_update(
@@ -786,36 +788,37 @@ class Core(component.Component):
         return status_dict
 
     @export
-    def get_filter_tree(self, show_zero_hits=True, hide_cat=None):
-        """
-        returns {field: [(value,count)] }
+    def get_filter_tree(
+        self, show_zero_hits: bool = True, hide_cat: List[str] = None
+    ) -> Dict:
+        """returns {field: [(value,count)] }
         for use in sidebar(s)
         """
         return self.filtermanager.get_filter_tree(show_zero_hits, hide_cat)
 
     @export
-    def get_session_state(self):
+    def get_session_state(self) -> List[str]:
         """Returns a list of torrent_ids in the session."""
         # Get the torrent list from the TorrentManager
         return self.torrentmanager.get_torrent_list()
 
     @export
-    def get_config(self):
+    def get_config(self) -> dict:
         """Get all the preferences as a dictionary"""
         return self.config.config
 
     @export
-    def get_config_value(self, key):
+    def get_config_value(self, key: str) -> Any:
         """Get the config value for key"""
         return self.config.get(key)
 
     @export
-    def get_config_values(self, keys):
+    def get_config_values(self, keys: List[str]) -> Dict[str, Any]:
         """Get the config values for the entered keys"""
         return {key: self.config.get(key) for key in keys}
 
     @export
-    def set_config(self, config):
+    def set_config(self, config: Dict[str, Any]):
         """Set the config with values from dictionary"""
         # Load all the values into the configuration
         for key in config:
@@ -824,21 +827,20 @@ class Core(component.Component):
             self.config[key] = config[key]
 
     @export
-    def get_listen_port(self):
+    def get_listen_port(self) -> int:
         """Returns the active listen port"""
         return self.session.listen_port()
 
     @export
-    def get_proxy(self):
+    def get_proxy(self) -> Dict[str, Any]:
         """Returns the proxy settings
 
         Returns:
-            dict: Contains proxy settings.
+            Proxy settings.
 
         Notes:
             Proxy type names:
                 0: None, 1: Socks4, 2: Socks5, 3: Socks5 w Auth, 4: HTTP, 5: HTTP w Auth, 6: I2P
-
         """
 
         settings = self.session.get_settings()
@@ -861,36 +863,38 @@ class Core(component.Component):
         return proxy_dict
 
     @export
-    def get_available_plugins(self):
+    def get_available_plugins(self) -> List[str]:
         """Returns a list of plugins available in the core"""
         return self.pluginmanager.get_available_plugins()
 
     @export
-    def get_enabled_plugins(self):
+    def get_enabled_plugins(self) -> List[str]:
         """Returns a list of enabled plugins in the core"""
         return self.pluginmanager.get_enabled_plugins()
 
     @export
-    def enable_plugin(self, plugin):
+    def enable_plugin(self, plugin: str) -> defer.Deferred[bool]:
         return self.pluginmanager.enable_plugin(plugin)
 
     @export
-    def disable_plugin(self, plugin):
+    def disable_plugin(self, plugin: str) -> defer.Deferred[bool]:
         return self.pluginmanager.disable_plugin(plugin)
 
     @export
-    def force_recheck(self, torrent_ids):
+    def force_recheck(self, torrent_ids: List[str]) -> None:
         """Forces a data recheck on torrent_ids"""
         for torrent_id in torrent_ids:
             self.torrentmanager[torrent_id].force_recheck()
 
     @export
-    def set_torrent_options(self, torrent_ids, options):
+    def set_torrent_options(
+        self, torrent_ids: List[str], options: Dict[str, Any]
+    ) -> None:
         """Sets the torrent options for torrent_ids
 
         Args:
-            torrent_ids (list): A list of torrent_ids to set the options for.
-            options (dict): A dict of torrent options to set. See
+            torrent_ids: A list of torrent_ids to set the options for.
+            options: A dict of torrent options to set. See
                 ``torrent.TorrentOptions`` class for valid keys.
         """
         if 'owner' in options and not self.authmanager.has_account(options['owner']):
@@ -903,12 +907,14 @@ class Core(component.Component):
             self.torrentmanager[torrent_id].set_options(options)
 
     @export
-    def set_torrent_trackers(self, torrent_id, trackers):
+    def set_torrent_trackers(
+        self, torrent_id: str, trackers: List[Dict[str, Any]]
+    ) -> None:
         """Sets a torrents tracker list. trackers will be ``[{"url", "tier"}]``"""
         return self.torrentmanager[torrent_id].set_trackers(trackers)
 
     @export
-    def get_magnet_uri(self, torrent_id):
+    def get_magnet_uri(self, torrent_id: str) -> str:
         return self.torrentmanager[torrent_id].get_magnet_uri()
 
     @deprecated
@@ -1056,7 +1062,7 @@ class Core(component.Component):
                 self.add_torrent_file(os.path.split(target)[1], filedump, options)
 
     @export
-    def upload_plugin(self, filename, filedump):
+    def upload_plugin(self, filename: str, filedump: Union[str, bytes]) -> None:
         """This method is used to upload new plugins to the daemon.  It is used
         when connecting to the daemon remotely and installing a new plugin on
         the client side. ``plugin_data`` is a ``xmlrpc.Binary`` object of the file data,
@@ -1074,26 +1080,24 @@ class Core(component.Component):
         component.get('CorePluginManager').scan_for_plugins()
 
     @export
-    def rescan_plugins(self):
-        """
-        Re-scans the plugin folders for new plugins
-        """
+    def rescan_plugins(self) -> None:
+        """Re-scans the plugin folders for new plugins"""
         component.get('CorePluginManager').scan_for_plugins()
 
     @export
-    def rename_files(self, torrent_id, filenames):
-        """
-        Rename files in ``torrent_id``.  Since this is an asynchronous operation by
+    def rename_files(
+        self, torrent_id: str, filenames: List[Tuple[int, str]]
+    ) -> defer.Deferred:
+        """Rename files in ``torrent_id``.  Since this is an asynchronous operation by
         libtorrent, watch for the TorrentFileRenamedEvent to know when the
         files have been renamed.
 
-        :param torrent_id: the torrent_id to rename files
-        :type torrent_id: string
-        :param filenames: a list of index, filename pairs
-        :type filenames: ((index, filename), ...)
-
-        :raises InvalidTorrentError: if torrent_id is invalid
+        Args:
+            torrent_id: the torrent_id to rename files
+            filenames: a list of index, filename pairs
 
+        Raises:
+            InvalidTorrentError: if torrent_id is invalid
         """
         if torrent_id not in self.torrentmanager.torrents:
             raise InvalidTorrentError('torrent_id is not in session')
@@ -1104,21 +1108,20 @@ class Core(component.Component):
         return task.deferLater(reactor, 0, rename)
 
     @export
-    def rename_folder(self, torrent_id, folder, new_folder):
-        """
-        Renames the 'folder' to 'new_folder' in 'torrent_id'.  Watch for the
+    def rename_folder(
+        self, torrent_id: str, folder: str, new_folder: str
+    ) -> defer.Deferred:
+        """Renames the 'folder' to 'new_folder' in 'torrent_id'.  Watch for the
         TorrentFolderRenamedEvent which is emitted when the folder has been
         renamed successfully.
 
-        :param torrent_id: the torrent to rename folder in
-        :type torrent_id: string
-        :param folder: the folder to rename
-        :type folder: string
-        :param new_folder: the new folder name
-        :type new_folder: string
-
-        :raises InvalidTorrentError: if the torrent_id is invalid
+        Args:
+            torrent_id: the torrent to rename folder in
+            folder: the folder to rename
+            new_folder: the new folder name
 
+        Raises:
+            InvalidTorrentError: if the torrent_id is invalid
         """
         if torrent_id not in self.torrentmanager.torrents:
             raise InvalidTorrentError('torrent_id is not in session')
@@ -1126,7 +1129,7 @@ class Core(component.Component):
         return self.torrentmanager[torrent_id].rename_folder(folder, new_folder)
 
     @export
-    def queue_top(self, torrent_ids):
+    def queue_top(self, torrent_ids: List[str]) -> None:
         log.debug('Attempting to queue %s to top', torrent_ids)
         # torrent_ids must be sorted in reverse before moving to preserve order
         for torrent_id in sorted(
@@ -1140,7 +1143,7 @@ class Core(component.Component):
                 log.warning('torrent_id: %s does not exist in the queue', torrent_id)
 
     @export
-    def queue_up(self, torrent_ids):
+    def queue_up(self, torrent_ids: List[str]) -> None:
         log.debug('Attempting to queue %s to up', torrent_ids)
         torrents = (
             (self.torrentmanager.get_queue_position(torrent_id), torrent_id)
@@ -1165,7 +1168,7 @@ class Core(component.Component):
                 prev_queue_position = queue_position
 
     @export
-    def queue_down(self, torrent_ids):
+    def queue_down(self, torrent_ids: List[str]) -> None:
         log.debug('Attempting to queue %s to down', torrent_ids)
         torrents = (
             (self.torrentmanager.get_queue_position(torrent_id), torrent_id)
@@ -1190,7 +1193,7 @@ class Core(component.Component):
                 prev_queue_position = queue_position
 
     @export
-    def queue_bottom(self, torrent_ids):
+    def queue_bottom(self, torrent_ids: List[str]) -> None:
         log.debug('Attempting to queue %s to bottom', torrent_ids)
         # torrent_ids must be sorted before moving to preserve order
         for torrent_id in sorted(
@@ -1204,17 +1207,15 @@ class Core(component.Component):
                 log.warning('torrent_id: %s does not exist in the queue', torrent_id)
 
     @export
-    def glob(self, path):
+    def glob(self, path: str) -> List[str]:
         return glob.glob(path)
 
     @export
-    def test_listen_port(self):
-        """
-        Checks if the active port is open
-
-        :returns: True if the port is open, False if not
-        :rtype: bool
+    def test_listen_port(self) -> defer.Deferred[Optional[bool]]:
+        """Checks if the active port is open
 
+        Returns:
+            True if the port is open, False if not
         """
         port = self.get_listen_port()
         url = 'https://deluge-torrent.org/test_port.php?port=%s' % port
@@ -1233,18 +1234,17 @@ class Core(component.Component):
         return d
 
     @export
-    def get_free_space(self, path=None):
-        """
-        Returns the number of free bytes at path
+    def get_free_space(self, path: str = None) -> int:
+        """Returns the number of free bytes at path
 
-        :param path: the path to check free space at, if None, use the default download location
-        :type path: string
+        Args:
+            path: the path to check free space at, if None, use the default download location
 
-        :returns: the number of free bytes at path
-        :rtype: int
-
-        :raises InvalidPathError: if the path is invalid
+        Returns:
+            the number of free bytes at path
 
+        Raises:
+            InvalidPathError: if the path is invalid
         """
         if not path:
             path = self.config['download_location']
@@ -1257,46 +1257,40 @@ class Core(component.Component):
         self.external_ip = external_ip
 
     @export
-    def get_external_ip(self):
-        """
-        Returns the external IP address received from libtorrent.
-        """
+    def get_external_ip(self) -> str:
+        """Returns the external IP address received from libtorrent."""
         return self.external_ip
 
     @export
-    def get_libtorrent_version(self):
-        """
-        Returns the libtorrent version.
-
-        :returns: the version
-        :rtype: string
+    def get_libtorrent_version(self) -> str:
+        """Returns the libtorrent version.
 
+        Returns:
+            the version
         """
         return LT_VERSION
 
     @export
-    def get_completion_paths(self, args):
-        """
-        Returns the available path completions for the input value.
-        """
+    def get_completion_paths(self, args: Dict[str, Any]) -> Dict[str, Any]:
+        """Returns the available path completions for the input value."""
         return path_chooser_common.get_completion_paths(args)
 
     @export(AUTH_LEVEL_ADMIN)
-    def get_known_accounts(self):
+    def get_known_accounts(self) -> List[Dict[str, Any]]:
         return self.authmanager.get_known_accounts()
 
     @export(AUTH_LEVEL_NONE)
-    def get_auth_levels_mappings(self):
+    def get_auth_levels_mappings(self) -> Tuple[Dict[str, int], Dict[int, str]]:
         return (AUTH_LEVELS_MAPPING, AUTH_LEVELS_MAPPING_REVERSE)
 
     @export(AUTH_LEVEL_ADMIN)
-    def create_account(self, username, password, authlevel):
+    def create_account(self, username: str, password: str, authlevel: str) -> bool:
         return self.authmanager.create_account(username, password, authlevel)
 
     @export(AUTH_LEVEL_ADMIN)
-    def update_account(self, username, password, authlevel):
+    def update_account(self, username: str, password: str, authlevel: str) -> bool:
         return self.authmanager.update_account(username, password, authlevel)
 
     @export(AUTH_LEVEL_ADMIN)
-    def remove_account(self, username):
+    def remove_account(self, username: str) -> bool:
         return self.authmanager.remove_account(username)
diff --git a/deluge/path_chooser_common.py b/deluge/path_chooser_common.py
index 858f7c2da..0ea92341c 100644
--- a/deluge/path_chooser_common.py
+++ b/deluge/path_chooser_common.py
@@ -40,7 +40,7 @@ def get_completion_paths(args):
     :param args: options
     :type args: dict
     :returns: the args argument containing the available completions for the completion_text
-    :rtype: list
+    :rtype: dict
 
     """
     args['paths'] = []
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 18ef4fe47..70739640a 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,3 +2,4 @@ sphinx==4.*
 myst-parser
 sphinx_rtd_theme
 sphinxcontrib-spelling==7.3.0
+sphinx-autodoc-typehints
diff --git a/docs/source/conf.py b/docs/source/conf.py
index f04653e03..9c5853c73 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -48,6 +48,7 @@ extensions = [
     'sphinx.ext.coverage',
     'sphinxcontrib.spelling',
     'myst_parser',
+    'sphinx_autodoc_typehints',
 ]
 
 napoleon_include_init_with_doc = True