class_docstr: An abstract base class for geographic projections
class_docstr_tok: ["An","abstract","base","class","for","geographic","projections"]
code: def start_pan(self, x, y, button):
      pass
  
imports: import numpy
  import matplotlib
  from matplotlib.axes import Axes
  import matplotlib.axis
  from matplotlib.patches import Circle
  from matplotlib.path import Path
  from matplotlib.projections import register_projection
  import matplotlib.spines
  from matplotlib.ticker import FixedLocator, Formatter, NullLocator
  from matplotlib.transforms import Affine2D, BboxTransformTo, Transform
label_desc: Use image node_id 22 for calling the GeoAxes obj's underlying member method code with example usage: obj.start_pan(x, y, button) without return types