interpreterobjects: use typed_kwargs for dependency.get_pkgconfig_variable

mesonbuild/interpreter/interpreterobjects.py

@@ -461,9 +461,19 @@ class DependencyHolder(ObjectHolder[Dependency]):
 
     @FeatureDeprecated('dependency.get_pkgconfig_variable', '0.56.0',
                        'use dependency.get_variable(pkgconfig : ...) instead')
-    @permittedKwargs({'define_variable', 'default'})
     @typed_pos_args('dependency.get_pkgconfig_variable', str)
-    def pkgconfig_method(self, args: T.Tuple[str], kwargs: TYPE_kwargs) -> str:
+    @typed_kwargs(
+        'dependency.get_pkgconfig_variable',
+        KwargInfo('default', (str, NoneType)),
+        KwargInfo(
+            'define_variable',
+            ContainerTypeInfo(list, str, pairs=True),
+            default=[],
+            listify=True,
+            validator=lambda x: 'must be of length 2 or empty' if len(x) not in {0, 2} else None,
+        ),
+    )
+    def pkgconfig_method(self, args: T.Tuple[str], kwargs: 'kwargs.DependencyPkgConfigVar') -> str:
         return self.held_object.get_pkgconfig_variable(args[0], **kwargs)
 
     @FeatureNew('dependency.get_configtool_variable', '0.44.0')

mesonbuild/interpreter/kwargs.py

@@ -244,3 +244,9 @@ class RunCommand(TypedDict):
 class FeatureOptionRequire(TypedDict):
 
     error_message: T.Optional[str]
+
+
+class DependencyPkgConfigVar(TypedDict):
+
+    default: T.Optional[str]
+    define_variable: T.List[str]