code: def toggle_axisline(self, b=None):
      if b is None:
          b = not self._axisline_on
      if b:
          self._axisline_on = True
          self.spines[:].set_visible(False)
          self.xaxis.set_visible(False)
          self.yaxis.set_visible(False)
      else:
          self._axisline_on = False
          self.spines[:].set_visible(True)
          self.xaxis.set_visible(True)
          self.yaxis.set_visible(True)
  
imports: import numpy
  import matplotlib
  from matplotlib import _api
  import matplotlib.axes
  from matplotlib.path import Path
  from mpl_toolkits.axes_grid1 import mpl_axes
  from .axisline_style import AxislineStyle
  from .axis_artist import AxisArtist, GridlinesCollection
label_desc: Use image node_id 3 for calling the Axes obj's underlying member method code with example usage: obj.toggle_axisline(b) without return types