code: def glGetShaderSource(shader):
      res = GL.glGetShaderSource(shader)
      return res.decode("utf-8")
  
imports: import ctypes
  from OpenGL import GL
  import OpenGL.GL.framebufferobjects
label_desc: Use image node_id 22 for calling a global function with example usage: glGetShaderSource(shader) and returns: res