fix: this bind error

Justin-lu · liujuping · commit 5dcd946dcaef · 2023-05-23T14:14:34.000+08:00
diff --git a/packages/shell/src/api/setters.ts b/packages/shell/src/api/setters.ts
@@ -47,11 +47,11 @@ export class Setters implements IPublicApiSetters {
    * 获取已注册的所有 settersMap
    * @returns
    */
-  getSettersMap(): Map<string, IPublicTypeRegisteredSetter & {
+  getSettersMap = (): Map<string, IPublicTypeRegisteredSetter & {
     type: string;
-  }> {
+  }> => {
     return this[settersSymbol].getSettersMap();
-  }
+  };
 
   /**
    * 注册一个 setter
