refactor(client): adjust the repr config of class diff

PR Closed: #936

tensorbay/client/diff.py

@@ -31,6 +31,7 @@
     AttrsMixin,
     NameMixin,
     ReprMixin,
+    ReprType,
     SortedNameList,
     UserSequence,
     attr,
@@ -121,12 +122,17 @@ class DataDiff(DiffBase):
 
     _T = TypeVar("_T", bound="DataDiff")
 
-    _repr_attrs = ("remote_path", "action")
+    _repr_attrs = ("action", "file", "label")
+
+    _repr_maxlevel = 2
 
     remote_path: str = attr(key=camel)
     file: FileDiff = attr()
     label: LabelDiff = attr()
 
+    def _repr_head(self) -> str:
+        return f'{self.__class__.__name__}("{self.remote_path}")'
+
     @classmethod
     def loads(cls: Type[_T], contents: Dict[str, Any]) -> _T:
         """Loads a :class:`DataDiff` instance from the given contents.
@@ -199,6 +205,8 @@ class DatasetDiff(Sequence[SegmentDiff], NameMixin):  # pylint: disable=too-many
 
     """
 
+    _repr_type = ReprType.SEQUENCE
+
     def __init__(self, name: str, segments: PagingList[SegmentDiff]) -> None:
         super().__init__(name)