code: public SpotFleetRequestConfigData withLaunchTemplateConfigs(LaunchTemplateConfig... launchTemplateConfigs) {
          if (this.launchTemplateConfigs == null) {
              setLaunchTemplateConfigs(new com.amazonaws.internal.SdkInternalList<LaunchTemplateConfig>(launchTemplateConfigs.length));
          }
          for (LaunchTemplateConfig ele : launchTemplateConfigs) {
              this.launchTemplateConfigs.add(ele);
          }
          return this;
      }
docs: <p>
  The launch template and overrides. If you specify <code>LaunchTemplateConfigs</code>, you can't specify
  <code>LaunchSpecifications</code>.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setLaunchTemplateConfigs(java.util.Collection)} or
  {@link #withLaunchTemplateConfigs(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param launchTemplateConfigs
  The launch template and overrides. If you specify <code>LaunchTemplateConfigs</code>, you can't specify
  <code>LaunchSpecifications</code>.
  @return Returns a reference to this object so that method calls can be chained together.