Simplify enum WASM bindings generator

PiperOrigin-RevId: 834725472
Change-Id: I278447145cd8dcdd145f0d50bc3bae649ea2b440

wasm/codegen/tests/generators_test.py

@@ -819,7 +819,9 @@ class EnumsGeneratorTest(absltest.TestCase):
         ),
     })
 
-    expected_code = """  enum_<TestEnum>("TestEnum")
+    expected_code = """
+EMSCRIPTEN_BINDINGS(mujoco_enums) {
+  enum_<TestEnum>("TestEnum")
     .value("FIRST_VAL", FIRST_VAL)
     .value("SECOND_VAL", SECOND_VAL)
     .value("THIRD_VAL", THIRD_VAL);
@@ -828,7 +830,7 @@ class EnumsGeneratorTest(absltest.TestCase):
     .value("ALPHA", ALPHA)
     .value("BETA", BETA);
 
-  enum_<EmptyEnum>("EmptyEnum");"""
+}""".strip()
 
     markers_and_content = generator.generate()
     actual_code = "\n\n".join(markers_and_content[0][1])