code: def neals_funnel(dim=10):
      y = pyro.sample("y", dist.Normal(0, 3))
      with pyro.plate("D", dim):
          return pyro.sample("x", dist.Normal(0, torch.exp(y / 2)))
  
file_path: pyro/tests/infer/reparam/test_structured.py
imports: import pytest
  import torch
  import pyro
  import pyro.distributions
  from pyro import optim
  from pyro.infer import MCMC, NUTS, SVI, JitTrace_ELBO, Trace_ELBO
  from pyro.infer.autoguide import AutoStructured
  from pyro.infer.reparam import StructuredReparam
  from .util import check_init_reparam
label_desc: Use image node_id 1 for calling a global function with example usage: neals_funnel(dim) and returns: pyro