Move isxidstart and isxidcontinue to conditional block

Author: StanFromIreland

stdlib/unicodedata.pyi

@@ -26,10 +26,6 @@ def digit(chr: str, /) -> int: ...
 @overload
 def digit(chr: str, default: _T, /) -> int | _T: ...
 
-if sys.version_info >= (3, 15):
-    def isxidstart(chr: str, /) -> bool: ...
-    def isxidcontinue(chr: str, /) -> bool: ...
-
 _EastAsianWidth: TypeAlias = Literal["F", "H", "W", "Na", "A", "N"]
 
 def east_asian_width(chr: str, /) -> _EastAsianWidth: ...
@@ -45,6 +41,11 @@ def normalize(form: _NormalizationForm, unistr: str, /) -> str: ...
 def numeric(chr: str, /) -> float: ...
 @overload
 def numeric(chr: str, default: _T, /) -> float | _T: ...
+
+if sys.version_info >= (3, 15):
+    def isxidstart(chr: str, /) -> bool: ...
+    def isxidcontinue(chr: str, /) -> bool: ...
+
 @final
 class UCD:
     # The methods below are constructed from the same array in C
@@ -75,3 +76,7 @@ class UCD:
     def numeric(self, chr: str, /) -> float: ...
     @overload
     def numeric(self, chr: str, default: _T, /) -> float | _T: ...
+
+    if sys.version_info >= (3, 15):
+        def isxidstart(chr: str, /) -> bool: ...
+        def isxidcontinue(chr: str, /) -> bool: ...