[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

dargs/__init__.py

@@ -2,4 +2,4 @@
 
 from .dargs import Argument, ArgumentEncoder, Variant
 
-__all__ = ["Argument", "Variant", "ArgumentEncoder"]
+__all__ = ["Argument", "ArgumentEncoder", "Variant"]

dargs/dargs.py

@@ -460,7 +460,7 @@ def _check_exist(self, argdict: dict, path=None):
             return
         if self.name not in argdict:
             raise ArgumentKeyError(
-                path, f"key `{self.name}` is required " "in arguments but not found"
+                path, f"key `{self.name}` is required in arguments but not found"
             )
 
     def _check_data(self, value: Any, path=None):
@@ -862,8 +862,7 @@ def get_choice(self, argdict: dict, path=None) -> Argument:
         else:
             raise ArgumentKeyError(
                 path,
-                f"key `{self.flag_name}` is required "
-                "to choose variant but not found.",
+                f"key `{self.flag_name}` is required to choose variant but not found.",
             )
 
     def flatten_sub(self, argdict: dict, path=None) -> dict[str, Argument]: