code: def lower_xlim(self):
      return self.axes.viewLim.intervalx
  
imports: from contextlib import ExitStack
  from matplotlib.axes import Axes
  import matplotlib.axis
  from matplotlib.projections import register_projection
  import matplotlib.spines
  import matplotlib.transforms
label_desc: Use image node_id 4 for calling the SkewXAxes obj's underlying member method code with example usage: obj.lower_xlim() and returns: self