code: public ClientVpnEndpoint withDnsServers(String... dnsServers) {
          if (this.dnsServers == null) {
              setDnsServers(new com.amazonaws.internal.SdkInternalList<String>(dnsServers.length));
          }
          for (String ele : dnsServers) {
              this.dnsServers.add(ele);
          }
          return this;
      }
docs: <p>
  Information about the DNS servers to be used for DNS resolution.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDnsServers(java.util.Collection)} or {@link #withDnsServers(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param dnsServers
  Information about the DNS servers to be used for DNS resolution.
  @return Returns a reference to this object so that method calls can be chained together.