build: type get_import_filenames

1 files changed, 2 insertions, 2 deletions

diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 939c3985b..64e2ae3b5 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -1731,7 +1731,7 @@ class Executable(BuildTarget):
     def type_suffix(self):
         return "@exe"
 
-    def get_import_filename(self):
+    def get_import_filename(self) -> T.Optional[str]:
         """
         The name of the import library that will be outputted by the compiler
 
@@ -2079,7 +2079,7 @@ class SharedLibrary(BuildTarget):
             else:
                 raise InvalidArguments(f'Invalid rust_crate_type "{rust_crate_type}": must be a string.')
 
-    def get_import_filename(self):
+    def get_import_filename(self) -> T.Optional[str]:
         """
         The name of the import library that will be outputted by the compiler