diff --git a/ast/src/generic.rs b/ast/src/generic.rs
index eff85dc837..e3568a3e39 100644
--- a/ast/src/generic.rs
+++ b/ast/src/generic.rs
@@ -405,8 +405,14 @@ pub struct StmtClassDef {
 
 impl Node for StmtClassDef {
     const NAME: &'static str = "ClassDef";
-    const FIELD_NAMES: &'static [&'static str] =
-        &["name", "bases", "keywords", "body", "decorator_list", "type_params"];
+    const FIELD_NAMES: &'static [&'static str] = &[
+        "name",
+        "bases",
+        "keywords",
+        "body",
+        "decorator_list",
+        "type_params",
+    ];
 }
 impl From<StmtClassDef> for Stmt {
     fn from(payload: StmtClassDef) -> Self {
@@ -463,7 +469,6 @@ impl From<StmtDelete> for Ast {
     }
 }
 
-
 /// See also [TypeAlias](https://docs.python.org/3/library/ast.html#ast.TypeAlias)
 #[derive(Clone, Debug, PartialEq)]
 pub struct StmtTypeAlias {
@@ -3123,7 +3128,6 @@ impl Node for TypeIgnore {
     const FIELD_NAMES: &'static [&'static str] = &[];
 }
 
-
 /// See also [type_param](https://docs.python.org/3/library/ast.html#ast.type_param)
 #[derive(Clone, Debug, PartialEq, is_macro::Is)]
 pub enum TypeParam {