Override binaryauthorization_v1::SystemPolicyV1Client Retry Policies

This shows how to override the retry policies for binaryauthorization_v1::SystemPolicyV1Client:

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  auto options = google::cloud::Options{}
                     
.set<google::cloud::binaryauthorization_v1::
                             
SystemPolicyV1ConnectionIdempotencyPolicyOption>(
                         
CustomIdempotencyPolicy().clone())
                     
.set<google::cloud::binaryauthorization_v1::
                             
SystemPolicyV1RetryPolicyOption>(
                         google
::cloud::binaryauthorization_v1::
                             
SystemPolicyV1LimitedErrorCountRetryPolicy(3)
                                 
.clone())
                     
.set<google::cloud::binaryauthorization_v1::
                             
SystemPolicyV1BackoffPolicyOption>(
                         google
::cloud::ExponentialBackoffPolicy(
                             
/*initial_delay=*/std::chrono::milliseconds(200),
                             
/*maximum_delay=*/std::chrono::seconds(45),
                             
/*scaling=*/2.0)
                             
.clone());
 
auto connection =
      google
::cloud::binaryauthorization_v1::MakeSystemPolicyV1Connection(
          options
);

 
// c1 and c2 share the same retry policies
 
auto c1 =
      google
::cloud::binaryauthorization_v1::SystemPolicyV1Client(connection);
 
auto c2 =
      google
::cloud::binaryauthorization_v1::SystemPolicyV1Client(connection);

 
// You can override any of the policies in a new client. This new client
 
// will share the policies from c1 (or c2) *except* from the retry policy.
 
auto c3 = google::cloud::binaryauthorization_v1::SystemPolicyV1Client(
      connection
,
      google
::cloud::Options{}
         
.set<google::cloud::binaryauthorization_v1::
                   
SystemPolicyV1RetryPolicyOption>(
              google
::cloud::binaryauthorization_v1::
                 
SystemPolicyV1LimitedTimeRetryPolicy(std::chrono::minutes(5))
                     
.clone()));

 
// You can also override the policies in a single call:
 
// c3.SomeRpc(..., google::cloud::Options{}
 
//     .set<google::cloud::binaryauthorization_v1::SystemPolicyV1RetryPolicyOption>(
 
//       google::cloud::binaryauthorization_v1::SystemPolicyV1LimitedErrorCountRetryPolicy(10).clone()));

Assuming you have created a custom idempotency policy. Such as:

class CustomIdempotencyPolicy : public google::cloud::binaryauthorization_v1::
                                   
SystemPolicyV1ConnectionIdempotencyPolicy {
 
public:
 
~CustomIdempotencyPolicy() override = default;
  std
::unique_ptr<google::cloud::binaryauthorization_v1::
                     
SystemPolicyV1ConnectionIdempotencyPolicy>
  clone
() const override {
   
return std::make_unique<CustomIdempotencyPolicy>(*this);
 
}
 
// Override inherited functions to define as needed.
};