code: def createRenderbuffer():
      # --- gl es
      n = 1
      renderbuffers = (ctypes.c_uint * n)()
      ()
      return renderbuffers[0]
      # --- pyopengl
      return FBO.glGenRenderbuffers(1)
      # --- mock
      return 1
  
imports: import ctypes
label_desc: Use image node_id 7 for calling a global function with example usage: createRenderbuffer() and returns: renderbuffers, FBO, int