code: def modify_params_using_dims(probs, dim):
      return torch.tensor(wrap_nested(probs, dim - 1))
  
imports: from unittest import TestCase
  import numpy
  import pytest
  import scipy.stats
  import torch
  import pyro.distributions
  from tests.common import assert_equal
label_desc: Use image node_id 4 for calling a global function with example usage: modify_params_using_dims(probs, dim) and returns: torch