@Override
    public int estimateSize() {
        return 128;
    }
@author James Chen
@implSpec <a href="https://datatracker.ietf.org/doc/html/rfc4511#section-4.5.1">4.5.1. Search
          Request</a>
turms-gateway/src/main/java/im/turms/gateway/infra/ldap/element/operation/search/SearchRequest.java