code: def _gen_axes_spines(self):
      spines = {
          "top": SkewSpine.linear_spine(self, "top"),
          "bottom": mspines.Spine.linear_spine(self, "bottom"),
          "left": mspines.Spine.linear_spine(self, "left"),
          "right": mspines.Spine.linear_spine(self, "right"),
      }
      return spines
  
imports: from contextlib import ExitStack
  import itertools
  import matplotlib.pyplot
  from matplotlib.testing.decorators import image_comparison
  from matplotlib.axes import Axes
  import matplotlib.transforms
  import matplotlib.axis
  import matplotlib.spines
  import matplotlib.patches
  from matplotlib.projections import register_projection
label_desc: Use image node_id 2 for calling the SkewXAxes obj's underlying member method code with example usage: obj._gen_axes_spines() and returns: spines