code: def test_closure_convert_trivial():
      def f(a):
          return a + 1
  
      f2 = eqx.filter_closure_convert(f, 1)
      f2.out_struct
      assert type(f2).__name__ == "_TrivialClosureConvert"
  
imports: import warnings
  from typing import Union
  import equinox
  import jax
  import jax.numpy
  import jax.random
  import jax.tree_util
  import numpy
  import pytest
  from .helpers import tree_allclose
label_desc: Use image node_id 10 for calling a global function with example usage: test_closure_convert_trivial() and returns: unknown