code: def setup_3d_axes():
      ax = plt.axes(projection="3d")
      ax.view_init(azim=-105, elev=20)
      ax.set_xlabel("x")
      ax.set_ylabel("y")
      ax.set_zlabel("z")
      ax.set_xlim(-1, 5)
      ax.set_ylim(-1, 5)
      ax.set_zlim(0, 5)
      return ax
  
imports: import os
  import matplotlib.pyplot
  import numpy
  from mpl_toolkits.mplot3d import Axes3D
  from scipy.linalg import svd
  import mne
label_desc: Use image node_id 1 for calling a global function with example usage: setup_3d_axes() and returns: ax