Docs update

docs/tutorial/supported-behaviors.md

@@ -4,6 +4,8 @@ Unimport can understand that imports are used these cases.
 
 ```python
 from typing import List, Dict
+
+
 def test(arg: List[Dict]) -> None:
    pass
 ```
@@ -16,12 +18,16 @@ Unimport supports the following cases
 
 ```python
 from typing import List, Dict
+
+
 def test(arg: 'List[Dict]') -> None:
    pass
 ```
 
 ```python
 from typing import List, Dict
+
+
 def test(arg: "List['Dict']") -> None:
    pass
 ```
@@ -38,6 +44,8 @@ Imports in the example below aren't flag as unused by import.
 from typing import Any
 from typing import Tuple
 from typing import Union
+
+
 def function(a, b):
     # type: (Any, str) -> Union[Tuple[None, None], Tuple[str, str]]
     pass
@@ -65,6 +73,7 @@ Other supported operations, **append** and **extend**
 ```python
 from os import *
 
+
 __all__ = []
 __all__.append("removedirs")
 __all__.extend(["walk"])
@@ -75,6 +84,7 @@ after refactoring
 ```python
 from os import removedirs, walk
 
+
 __all__ = []
 __all__.append("removedirs")
 __all__.extend(["walk"])
@@ -94,6 +104,7 @@ Let me give a few examples.
 ```python
 import x
 
+
 def func():
     import x
 
@@ -118,6 +129,7 @@ def func():
 ```python
 import x
 
+
 class Klass:
 
   def f(self):

tests/cases/analyzer/statement/match_statement.py

@@ -6,12 +6,9 @@
 
 
 NAMES: List[Name] = [
-    Name(lineno=3, name='sort_by', is_all=False),
-    Name(lineno=4, name='sort_by', is_all=False),
-    Name(lineno=5, name='sort_by', is_all=False),
-]
-IMPORTS: List[Union[Import, ImportFrom]] = [
-]
-UNUSED_IMPORTS: List[Union[Import, ImportFrom]] = [
-
+    Name(lineno=3, name="sort_by", is_all=False),
+    Name(lineno=4, name="sort_by", is_all=False),
+    Name(lineno=5, name="sort_by", is_all=False),
 ]
+IMPORTS: List[Union[Import, ImportFrom]] = []
+UNUSED_IMPORTS: List[Union[Import, ImportFrom]] = []