code: public DescribeAppsRequest withAppIds(String... appIds) {
          if (this.appIds == null) {
              setAppIds(new com.amazonaws.internal.SdkInternalList<String>(appIds.length));
          }
          for (String ele : appIds) {
              this.appIds.add(ele);
          }
          return this;
      }
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>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setAppIds(java.util.Collection)} or {@link #withAppIds(java.util.Collection)} if you want to override the
  existing values.
  </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.
  @return Returns a reference to this object so that method calls can be chained together.