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