code: func ExampleRequest() *csr.CertificateRequest {
  	return &csr.CertificateRequest{
  		Hosts: []string{"localhost"},
  		KeyRequest: &csr.BasicKeyRequest{
  			A: "ecdsa",
  			S: 256,
  		},
  		CN: "Transport Failover Test Local CA",
  		CA: &csr.CAConfig{
  			PathLength: 1,
  			Expiry:     "30m",
  		},
  	}
  }
docs: // ExampleRequest can be used as a sample request, or the returned
  // request can be modified.