code: def test_make_fourier_inside_jitted_fun(get_ongrid_fields):
      a, b = get_ongrid_fields
  
      @jax.jit
      def f(x):
          print(a.params)
          y = FourierSeries(x.params**2, x.domain)
          return y + 1
  
      v = f(a)
      v = f(a)
      assert v.params == 2.0
  
file_path: jaxdf/tests/test_core.py
imports: import jax
  import numpy
  import pytest
  from jax import jit
  from jax import numpy
  from jaxdf import *
  from jaxdf.signatures import SignatureError
label_desc: Use image node_id 6 for calling a global function with example usage: test_make_fourier_inside_jitted_fun(get_ongrid_fields) and returns: unknown