1 files changed, 6 insertions, 2 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/python/templates/DurationHelper.py b/third_party/rust/uniffi_bindgen/src/bindings/python/templates/DurationHelper.py
index 10974e009d..ecb035b7f4 100644
--- a/third_party/rust/uniffi_bindgen/src/bindings/python/templates/DurationHelper.py
+++ b/third_party/rust/uniffi_bindgen/src/bindings/python/templates/DurationHelper.py
@@ -12,10 +12,14 @@ class _UniffiConverterDuration(_UniffiConverterRustBuffer):
         return datetime.timedelta(seconds=seconds, microseconds=microseconds)
 
     @staticmethod
-    def write(value, buf):
+    def check_lower(value):
         seconds = value.seconds + value.days * 24 * 3600
-        nanoseconds = value.microseconds * 1000
         if seconds < 0:
             raise ValueError("Invalid duration, must be non-negative")
+
+    @staticmethod
+    def write(value, buf):
+        seconds = value.seconds + value.days * 24 * 3600
+        nanoseconds = value.microseconds * 1000
         buf.write_i64(seconds)
         buf.write_u32(nanoseconds)