prefer allow(unused_variables) to let _

Author: davidhewitt

src/argument_markers.rs

@@ -93,8 +93,7 @@ impl PydanticUndefinedType {
         UNDEFINED_CELL.get(py).unwrap().clone()
     }
 
-    fn __deepcopy__(&self, py: Python, memo: &PyAny) -> Py<Self> {
-        let _ = memo;
+    fn __deepcopy__(&self, py: Python, #[allow(unused_variables)] memo: &PyAny) -> Py<Self> {
         self.__copy__(py)
     }
 

src/url.rs

@@ -142,8 +142,7 @@ impl PyUrl {
         true // an empty string is not a valid URL
     }
 
-    pub fn __deepcopy__(&self, py: Python, memo: &PyDict) -> Py<PyAny> {
-        let _ = memo;
+    pub fn __deepcopy__(&self, py: Python, #[allow(unused_variables)] memo: &PyDict) -> Py<PyAny> {
         self.clone().into_py(py)
     }
 

src/validators/mod.rs

@@ -82,8 +82,7 @@ impl PySome {
     }
 
     #[classmethod]
-    pub fn __class_getitem__(cls: &PyType, item: &PyAny) -> Py<PyType> {
-        let _ = item;
+    pub fn __class_getitem__(cls: &PyType, #[allow(unused_variables)] item: &PyAny) -> Py<PyType> {
         cls.into_py(cls.py())
     }