1# Owner(s): ["module: unknown"] 2 3import argparse 4 5import torch 6 7 8if __name__ == "__main__": 9 parser = argparse.ArgumentParser() 10 11 # Required args. Raises error if they aren't passed. 12 parser.add_argument("--foo", help="foo", required=True) 13 parser.add_argument("--bar", help="bar", required=True) 14 _ = parser.parse_args() 15 16 x = torch.ones((3, 3), requires_grad=True) 17 (3 * x).sum().backward() 18