def get_optimized_gradient(self):
opt_grad = self.get_optimization_gradients()<EOL>if len(opt_grad) == <NUM_LIT:0>:<EOL><INDENT>return None<EOL><DEDENT>else:<EOL><INDENT>return opt_grad[-<NUM_LIT:1>]<EOL><DEDENT>
Return the energy gradient of the optimized geometry