code: def plot_gaussian(
      mean=0.0,
      variance=1.0,
      ax=None,
      mean_line=False,
      xlim=None,
      ylim=None,
      xlabel=None,
      ylabel=None,
      label=None,
  ):
      """
      DEPRECATED. Use plot_gaussian_pdf() instead. This is poorly named, as
      there are multiple ways to plot a Gaussian.
      """
  
      warnings.warn(
          "This function is deprecated. It is poorly named. "
          "A Gaussian can be plotted as a PDF or CDF. This "
          "plots a PDF. Use plot_gaussian_pdf() instead,",
          DeprecationWarning,
      )
      return plot_gaussian_pdf(
          mean,
          variance,
          ax,
          mean_line,
          xlim,
          ylim,
          xlabel,
          ylabel,
          label,
      )
  
imports: from __future__ import absolute_import, division, unicode_literals
  import math
  from math import cos, sin
  import random
  import warnings
  import numpy
  from numpy.linalg import inv
  import scipy.linalg
  import scipy.sparse
  import scipy.sparse.linalg
  from scipy.stats import norm, multivariate_normal
label_desc: Use image node_id 15 for calling a global function with example usage: plot_gaussian(mean, variance, ax, mean_line, xlim, ylim, xlabel, ylabel, label) and returns: plot_gaussian_pdf