@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      maxRetryDuration_ = null;
      if (maxRetryDurationBuilder_ != null) {
        maxRetryDurationBuilder_.dispose();
        maxRetryDurationBuilder_ = null;
      }
      minBackoff_ = null;
      if (minBackoffBuilder_ != null) {
        minBackoffBuilder_.dispose();
        minBackoffBuilder_ = null;
      }
      maxBackoff_ = null;
      if (maxBackoffBuilder_ != null) {
        maxBackoffBuilder_.dispose();
        maxBackoffBuilder_ = null;
      }
      maxDoublings_ = 0;
      numAttemptsCase_ = 0;
      numAttempts_ = null;
      return this;
    }
<pre>
Retry config.

These settings determine how a failed task attempt is retried.
</pre>

Protobuf type {@code google.cloud.tasks.v2beta2.RetryConfig}
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/RetryConfig.java