code: public InstanceGroup withLastSuccessfullyAppliedConfigurations(Configuration... lastSuccessfullyAppliedConfigurations) {
          if (this.lastSuccessfullyAppliedConfigurations == null) {
              setLastSuccessfullyAppliedConfigurations(new com.amazonaws.internal.SdkInternalList<Configuration>(lastSuccessfullyAppliedConfigurations.length));
          }
          for (Configuration ele : lastSuccessfullyAppliedConfigurations) {
              this.lastSuccessfullyAppliedConfigurations.add(ele);
          }
          return this;
      }
docs: <p>
  A list of configurations that were successfully applied for an instance group last time.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setLastSuccessfullyAppliedConfigurations(java.util.Collection)} or
  {@link #withLastSuccessfullyAppliedConfigurations(java.util.Collection)} if you want to override the existing
  values.
  </p>
  
  @param lastSuccessfullyAppliedConfigurations
  A list of configurations that were successfully applied for an instance group last time.
  @return Returns a reference to this object so that method calls can be chained together.