[clang-tools-extra] [llvm] [Github][CI] Introduce `LintHelper` class in `code-lint-helper.py` (PR #168827)

[via llvm-commits]

================
@@ -18,98 +18,65 @@
 """
 
 import argparse
+import github
+import json
 import os
 import subprocess
 import sys
-from typing import List, Optional
+from typing import Any, Dict, Final, List, Sequence
 
 
 class LintArgs:
-    start_rev: str = None
-    end_rev: str = None
-    repo: str = None
-    changed_files: List[str] = []
-    token: str = None
+    start_rev: str
+    end_rev: str
+    repo: str
+    changed_files: Sequence[str]
+    token: str
     verbose: bool = True
     issue_number: int = 0
     build_path: str = "build"
     clang_tidy_binary: str = "clang-tidy"
 
-    def __init__(self, args: argparse.Namespace = None) -> None:
+    def __init__(self, args: argparse.Namespace) -> None:
         if not args is None:
----------------
EugeneZelenko wrote:

```suggestion
        if args is not None:
```

https://github.com/llvm/llvm-project/pull/168827