code: def test_for_loop_can_write_to_multiple_refs(self, for_impl):
      def body(_, refs):
          x_ref, y_ref = refs
          x_ref[()] = jnp.float32(1.0)
          y_ref[()] = jnp.float32(2.0)
  
      x, y = for_impl(1, body, (jnp.float32(0.0), jnp.float32(0.0)))
      self.assertEqual(x, 1.0)
      self.assertEqual(y, 2.0)
  
imports: from functools import partial
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  import jax
  from jax import random
  from jax._src import test_util
  from jax._src.lax.control_flow import for_loop
  import jax.numpy
  from jax import config
label_desc: Use image node_id 3 for calling the ForLoopTest obj's underlying member method code with example usage: obj.test_for_loop_can_write_to_multiple_refs(for_impl) without return types