@Override
  public String toString() {
    return "ResponseInfo{requestInfo=" + requestInfo + ", error=" + error + ", response=" + content + ", dataNode="
        + dataNode + '}';
  }
@return the quotaRejected flag. {@code true} if this request was rejected due quota non-compliance.
{@code false} otherwise.
ambry-api/src/main/java/com/github/ambry/network/ResponseInfo.java