code: public OperatingSystem withConfigurationManagers(OperatingSystemConfigurationManager... configurationManagers) {
          if (this.configurationManagers == null) {
              setConfigurationManagers(new com.amazonaws.internal.SdkInternalList<OperatingSystemConfigurationManager>(configurationManagers.length));
          }
          for (OperatingSystemConfigurationManager ele : configurationManagers) {
              this.configurationManagers.add(ele);
          }
          return this;
      }
docs: <p>
  Supported configuration manager name and versions for an AWS OpsWorks Stacks operating system.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setConfigurationManagers(java.util.Collection)} or
  {@link #withConfigurationManagers(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param configurationManagers
  Supported configuration manager name and versions for an AWS OpsWorks Stacks operating system.
  @return Returns a reference to this object so that method calls can be chained together.