fix: dynamic output property

src/builder.ts

@@ -1148,16 +1148,23 @@ export class SchemaBuilder {
       if (typeof val === "string") {
         return this.addDynamicScalar(methodName, val, block);
       }
-      // @ts-ignore
-      block[methodName] = (...args: any[]) => {
-        const config = isList ? [args[0], { list: isList, ...args[1] }] : args;
-        return val.value.factory({
-          args: config,
-          typeDef: block,
-          builder: this,
-          typeName: block.typeName,
-        });
-      };
+
+      // At this point `methodName` identifier name can be a misnormer. If the
+      // given factory returns a function then methodName is accurate, but not
+      // if the factory returns something else. For example it may return an
+      // object of methods (aka. methods under a namespace/field/property)
+      // in which case a better identifier might be `namespace`, `propName`, ...
+      Object.defineProperty(block, methodName, {
+        get() {
+          return val.value.factory({
+            args: [],
+            typeDef: block,
+            builder: this,
+            typeName: block.typeName,
+          });
+        },
+        enumerable: true,
+      });
     });
   }