code: public void setAppIds(java.util.Collection<String> appIds) {
          if (appIds == null) {
              this.appIds = null;
              return;
          }
  
          this.appIds = new com.amazonaws.internal.SdkInternalList<String>(appIds);
      }
docs: <p>
  An array of app IDs for the apps to be described. If you use this parameter, <code>DescribeApps</code> returns a
  description of the specified apps. Otherwise, it returns a description of every app.
  </p>
  
  @param appIds
  An array of app IDs for the apps to be described. If you use this parameter, <code>DescribeApps</code>
  returns a description of the specified apps. Otherwise, it returns a description of every app.