code: def computeFPS():
      global frameCount, fpsCount, fpsLimit, timer
      frameCount += 1
      fpsCount += 1
      if fpsCount == fpsLimit:
          ifps = 1.0 / timer
          glutSetWindowTitle("Cuda Edge Detection: %f fps" % ifps)
          fpsCount = 0
  
imports: from OpenGL.GL import *
  from OpenGL.GLUT import *
  from OpenGL.GLU import *
  from OpenGL.GL.ARB.vertex_buffer_object import *
  import numpy, Image
  import sys, time, os
  import pycuda.driver
  import pycuda.gl
  import pycuda
  from pycuda.compiler import SourceModule
label_desc: Use image node_id 2 for calling a global function with example usage: computeFPS() without return types