def METHOD_NAME(self):
    result = self.do_command(self.dev_args + ['promptpin'])
    self.assertIn('error', result)
    self.assertIn('code', result)
    self.assertEqual(result['error'], 'The Coldcard does not need a PIN sent from the host')
    self.assertEqual(result['code'], -9)
    result = self.do_command(self.dev_args + ['sendpin', '1234'])
    self.assertIn('error', result)
    self.assertIn('code', result)
    self.assertEqual(result['error'], 'The Coldcard does not need a PIN sent from the host')
    self.assertEqual(result['code'], -9)