Add misc type hints (#8430)

dvc/cli/command.py

@@ -1,6 +1,10 @@
 import logging
 import os
 from abc import ABC, abstractmethod
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    from dvc.config import Config
 
 logger = logging.getLogger(__name__)
 
@@ -8,13 +12,13 @@ logger = logging.getLogger(__name__)
 class CmdBase(ABC):
     UNINITIALIZED = False
 
-    def __init__(self, args):
+    def __init__(self, args: Any):
         from dvc.repo import Repo
 
         os.chdir(args.cd)
 
         self.repo: "Repo" = Repo(uninitialized=self.UNINITIALIZED)
-        self.config = self.repo.config
+        self.config: "Config" = self.repo.config
         self.args = args
 
     def do_run(self):