class_docstr: An Axis class for the 3D plots.
code: def _init3d(self):
      self.line = mlines.Line2D(
          xdata=(0, 0),
          ydata=(0, 0),
          linewidth=self._axinfo["axisline"]["linewidth"],
          color=self._axinfo["axisline"]["color"],
          antialiased=True,
      )
  
      # Store dummy data in Polygon object
      self.pane = mpatches.Polygon([[0, 0], [0, 1]], closed=False)
      self.set_pane_color(self._axinfo["color"])
  
      self.axes._set_artist_props(self.line)
      self.axes._set_artist_props(self.pane)
      self.gridlines = art3d.Line3DCollection([])
      self.axes._set_artist_props(self.gridlines)
      self.axes._set_artist_props(self.label)
      self.axes._set_artist_props(self.offsetText)
      # Need to be able to place the label at the correct location
      self.label._transform = self.axes.transData
      self.offsetText._transform = self.axes.transData
  
imports: import inspect
  import numpy
  import matplotlib
  from matplotlib import _api, artist, lines, axis, patches, transforms, colors
  from .None import art3d, proj3d
label_desc: Use image node_id 4 for calling the Axis obj's underlying member method code with example usage: obj._init3d() without return types