code: def make_meshgrid(x, y, h=0.02):
      x_min, x_max = x.min() - 1, x.max() + 1
      y_min, y_max = y.min() - 1, y.max() + 1
      xx, yy = np.meshgrid(
          np.arange(x_min, x_max, h), np.arange(y_min, y_max, h)
      )
      return xx, yy
  
imports: import json
  import os
  import numpy
  import joblib
  import matplotlib.pyplot
  from data_util import load_data
label_desc: Use image node_id 1 for calling a global function with example usage: make_meshgrid(x, y, h) and returns: xx,  yy