code: def get_nth_coord(self):
      return self.nth_coord
  
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 2 for calling the _FloatingAxisArtistHelperBase obj's underlying member method code with example usage: obj.get_nth_coord() and returns: self