diff --git a/megfile/fsspec.py b/megfile/fsspec.py
index 9df40c16..021d668c 100644
--- a/megfile/fsspec.py
+++ b/megfile/fsspec.py
@@ -63,7 +63,7 @@ def _make_entry(filesystem, info):
 
 class BaseFSSpecPath(URIPath):
     protocol: str
-    filesystem: 'fsspec.AbstractFileSystem'
+    filesystem: "fsspec.AbstractFileSystem"
 
     def __init__(self, path: PathLike, *other_paths: PathLike):
         super().__init__(path, *other_paths)
@@ -375,7 +375,7 @@ def sync(
             self.path_without_protocol, dst_path, recursive=True
         )
 
-    def rename(self, dst_path: PathLike, overwrite: bool = True) -> "BaseFSSpecPath":
+    def rename(self, dst_path: PathLike, overwrite: bool = True):
         """
         rename file with fsspec
 
@@ -384,7 +384,7 @@ def rename(self, dst_path: PathLike, overwrite: bool = True) -> "BaseFSSpecPath"
         """
         self.filesystem.mv(self.path_without_protocol, dst_path, recursive=False)
 
-    def move(self, dst_path: PathLike, overwrite: bool = True) -> "BaseFSSpecPath":
+    def move(self, dst_path: PathLike, overwrite: bool = True):
         """
         move file/directory with fsspec
 
@@ -393,7 +393,7 @@ def move(self, dst_path: PathLike, overwrite: bool = True) -> "BaseFSSpecPath":
         """
         self.filesystem.mv(self.path_without_protocol, dst_path, recursive=True)
 
-    def unlink(self, missing_ok: bool = False) -> None:
+    def unlink(self, missing_ok: bool = False):
         """
         Remove the file with fsspec
 
@@ -403,7 +403,7 @@ def unlink(self, missing_ok: bool = False) -> None:
             return
         self.filesystem.rm(self.path_without_protocol, recursive=False)
 
-    def remove(self, missing_ok: bool = False) -> None:
+    def remove(self, missing_ok: bool = False):
         """
         Remove the file or directory with fsspec
 
@@ -456,7 +456,7 @@ def create_generator():
             FileNotFoundError("No match any file in: %r" % self.path_with_protocol),
         )
 
-    def scandir(self) -> Iterator[FileEntry]:
+    def scandir(self, followlinks: bool = False) -> Iterator[FileEntry]:
         """
         Get all content of given file path.
 
diff --git a/tests/test_smart_path.py b/tests/test_smart_path.py
index 51b93607..883d3ae8 100644
--- a/tests/test_smart_path.py
+++ b/tests/test_smart_path.py
@@ -12,6 +12,7 @@
 )
 from megfile.fs_path import FSPath
 from megfile.hdfs_path import HdfsPath
+from megfile.hf_path import HFPath
 from megfile.http_path import HttpPath, HttpsPath
 from megfile.interfaces import Access
 from megfile.s3_path import S3Path
@@ -58,7 +59,7 @@ def s3_empty_client(mocker):
 
 
 def test_register_result():
-    assert len(SmartPath._registered_protocols) == 7
+    assert len(SmartPath._registered_protocols) == 8
     assert S3Path.protocol in SmartPath._registered_protocols
     assert FSPath.protocol in SmartPath._registered_protocols
     assert HttpPath.protocol in SmartPath._registered_protocols
@@ -66,6 +67,7 @@ def test_register_result():
     assert StdioPath.protocol in SmartPath._registered_protocols
     assert SftpPath.protocol in SmartPath._registered_protocols
     assert HdfsPath.protocol in SmartPath._registered_protocols
+    assert HFPath.protocol in SmartPath._registered_protocols
 
     assert SmartPath._registered_protocols[S3Path.protocol] == S3Path
     assert SmartPath._registered_protocols[FSPath.protocol] == FSPath
@@ -73,6 +75,7 @@ def test_register_result():
     assert SmartPath._registered_protocols[HttpsPath.protocol] == HttpsPath
     assert SmartPath._registered_protocols[StdioPath.protocol] == StdioPath
     assert SmartPath._registered_protocols[HdfsPath.protocol] == HdfsPath
+    assert SmartPath._registered_protocols[HFPath.protocol] == HFPath
     assert SmartPath.from_uri(FS_TEST_ABSOLUTE_PATH) == SmartPath(FS_TEST_ABSOLUTE_PATH)