code: public void setSnapshotArns(java.util.Collection<String> snapshotArns) {
          if (snapshotArns == null) {
              this.snapshotArns = null;
              return;
          }
  
          this.snapshotArns = new com.amazonaws.internal.SdkInternalList<String>(snapshotArns);
      }
docs: <p>
  A single-element string list containing an Amazon Resource Name (ARN) that uniquely identifies a Redis RDB
  snapshot file stored in Amazon S3. The snapshot file is used to populate the node group (shard). The Amazon S3
  object name in the ARN cannot contain any commas.
  </p>
  <note>
  <p>
  This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.
  </p>
  </note>
  <p>
  Example of an Amazon S3 ARN: <code>arn:aws:s3:::my_bucket/snapshot1.rdb</code>
  </p>
  
  @param snapshotArns
  A single-element string list containing an Amazon Resource Name (ARN) that uniquely identifies a Redis RDB
  snapshot file stored in Amazon S3. The snapshot file is used to populate the node group (shard). The
  Amazon S3 object name in the ARN cannot contain any commas.</p> <note>
  <p>
  This parameter is only valid if the <code>Engine</code> parameter is <code>redis</code>.
  </p>
  </note>
  <p>
  Example of an Amazon S3 ARN: <code>arn:aws:s3:::my_bucket/snapshot1.rdb</code>