diff --git a/libs/MCDR/version.py b/libs/MCDR/version.py
index fa29b02..54ce239 100644
--- a/libs/MCDR/version.py
+++ b/libs/MCDR/version.py
@@ -1,18 +1,17 @@
 # 本文件以 GNU Lesser General Public License v3.0（GNU LGPL v3) 开源协议进行授权 (谢谢狐狸写出这么好的MCDR)
 # 顺便说一句,我把所有的tab都改成了空格,因为我觉得空格比tab更好看(草,后半句是github copilot自动填充的)
 
+"""
+This part of code come from MCDReforged(https://github.com/Fallen-Breath/MCDReforged)
+Thanks a lot to Fallen_Breath and MCDR contributors
+GNU Lesser General Public License v3.0 (GNU LGPL v3)
+"""
+
 """
 Plugin Version
 """
 import re
-from typing import List, Callable, Tuple, Optional
-
-"""
-This part of code come from MCDReforged(https://github.com/Fallen-Breath/MCDReforged)
-Very thanks to Fallen_Breath and other coder who helped MCDR worked better
-GNU Lesser General Public License v3.0（GNU LGPL v3)
-# (hasn't some changes)
-"""
+from typing import List, Callable, Tuple, Optional, Union
 
 
 # beta.3 -> (beta, 3), random -> (random, None)
@@ -43,6 +42,15 @@ class ExtraElement:
 
 
 class Version:
+    """
+    A version container that stores semver like version string
+
+    Example:
+
+    * ``"1.2.3"``
+    * ``"1.0.*"``
+    * ``"1.2.3-pre4+build.5"``
+    """
     EXTRA_ID_PATTERN = re.compile(r'|[-+0-9A-Za-z]+(\.[-+0-9A-Za-z]+)*')
     WILDCARDS = ('*', 'x', 'X')
     WILDCARD = -1
@@ -52,9 +60,10 @@ class Version:
     pre: Optional[ExtraElement]
     build: Optional[ExtraElement]
 
-    def __init__(self, version_str: str, allow_wildcard=True):
+    def __init__(self, version_str: str, *, allow_wildcard: bool = True):
         """
-        :param str version_str: the version str like '1.2.3-pre4+build.5'
+        :param version_str: The version string to be parsed
+        :keyword allow_wildcard: If wildcard (``"*"``, ``"x"``, ``"X"``) is allowed. Default: ``True``
         """
         if not isinstance(version_str, str):
             raise VersionParsingError('Invalid input version string')
@@ -102,10 +111,7 @@ class Version:
             version_str += '+' + str(self.build)
         return version_str
 
-    def __repr__(self):
-        return 'Version({})'.format(self.__str__())
-
-    def __getitem__(self, index):
+    def __getitem__(self, index: int) -> int:
         if index < len(self.component):
             return self.component[index]
         else:
@@ -152,7 +158,7 @@ class Criterion:
         self.base_version = base_version
         self.criterion = criterion
 
-    def test(self, target: str or Version):
+    def test(self, target: Union[Version, str]):
         return self.criterion(self.base_version, target)
 
     def __str__(self):
@@ -160,6 +166,11 @@ class Criterion:
 
 
 class VersionRequirement:
+    """
+    A version requirement tester
+
+    It can test if a given :class:`Version` object matches its requirement
+    """
     CRITERIONS = {
         '<=': lambda base, ver: ver <= base,
         '>=': lambda base, ver: ver >= base,
@@ -171,6 +182,10 @@ class VersionRequirement:
     }
 
     def __init__(self, requirements: str):
+        """
+        :param requirements: The requirement string, which contains several version predicates connected by space character.
+            e.g. ``">=1.0.x"``, ``"^2.9"``, ``">=1.2.0 <1.4.3"``
+        """
         if not isinstance(requirements, str):
             raise VersionParsingError('Requirements should be a str, not {}'.format(type(requirements).__name__))
         self.criterions = []  # type: List[Criterion]
@@ -186,7 +201,7 @@ class VersionRequirement:
                     base_version = requirement
                 self.criterions.append(Criterion(opt, Version(base_version), self.CRITERIONS[opt]))
 
-    def accept(self, version: Version or str):
+    def accept(self, version: Union[Version, str]):
         if isinstance(version, str):
             version = Version(version)
         for criterion in self.criterions:
@@ -199,15 +214,4 @@ class VersionRequirement:
 
 
 class VersionParsingError(ValueError):
-    pass
-
-
-if __name__ == '__main__':
-    from objprint import op
-    test_list = ['1.1.1',
-                 '1.0',
-                 '1.11.1.11.1']
-
-    for a_test in test_list:
-        version_a = Version(a_test)
-        op(version_a)
+    pass
\ No newline at end of file