code: def thin_plate_spline(r):
      if r == 0:
          return 0.0
      else:
          return r**2 * np.log(r)
  
file_path: scipy/scipy/interpolate/_rbfinterp_pythran.py
imports: import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: thin_plate_spline(r) and returns: int, unknown