code: def createBuffer():
      # --- gl es
      n = 1
      buffers = (ctypes.c_uint * n)()
      ()
      return buffers[0]
      # --- pyopengl
      return GL.glGenBuffers(1)
      # --- mock
      return 1
  
imports: import ctypes
label_desc: Use image node_id 5 for calling a global function with example usage: createBuffer() and returns: buffers, GL, int