code: def _XlaClusterOutputGrad(_, grad):
      del grad  # unused
      raise RuntimeError(
          "Gradient computation of graph in xla.compile() is "
          "prohibited because it can cause performance degradation."
          "Please move gradient computation inside xla.compile()."
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: _XlaClusterOutputGrad(_, grad) without return types