code: def setup(self, source):
      self.data = np.random.randn(100000)
      self.x = np.random.randn(100000).tolist()
      if source == "az.utils":
          self.atleast_2d = az.utils.two_de
          self.atleast_1d = az.utils.one_de
      else:
          self.atleast_2d = np.atleast_2d
          self.atleast_1d = np.atleast_1d
  
imports: import numpy
  from scipy.stats import circstd
  import arviz
  from arviz.stats.density_utils import _fast_kde_2d, histogram, kde
  from arviz.stats.stats_utils import _circular_standard_deviation, stats_variance_2d
label_desc: Use image node_id 1 for calling the Atleast_Nd obj's underlying member method code with example usage: obj.setup(source) without return types