code: def gen_subset(xs):
      if not xs:
          return []
  
      return gen_sized_subset(xs, npr.randint(len(xs) + 1))
  
imports: from collections import namedtuple
  from functools import partial
  import numpy.random
  from absl.testing import absltest
  from absl.testing import parameterized
  import itertools
  import jax.numpy
  from jax import jit, jvp, vjp
  import jax._src.test_util
  from jax import config
  from jax._src.util import unzip2, safe_zip, safe_map
label_desc: Use image node_id 18 for calling a global function with example usage: gen_subset(xs) and returns: gen_sized_subset, list