Fix import sorting

src/darker/diff.py

@@ -67,7 +67,7 @@
 
 import logging
 from difflib import SequenceMatcher
-from typing import List, Generator, Tuple
+from typing import Generator, List, Tuple
 
 logger = logging.getLogger(__name__)
 

src/darker/tests/test_black_diff.py

@@ -2,7 +2,7 @@
 
 import pytest
 
-from darker.black_diff import read_black_config, run_black, run_black
+from darker.black_diff import read_black_config, run_black
 
 
 @pytest.mark.parametrize(

src/darker/tests/test_diff.py

@@ -1,6 +1,6 @@
 from textwrap import dedent
 
-from black import format_str, FileMode
+from black import FileMode, format_str
 
 from darker.diff import (
     diff_and_get_opcodes,

src/darker/tests/test_git.py

@@ -3,9 +3,9 @@
 import pytest
 
 from darker.git import (
+    git_diff_name_only,
     git_get_unmodified_content,
     should_reformat_file,
-    git_diff_name_only,
 )