code: public DeleteFacesRequest withFaceIds(String... faceIds) {
          if (this.faceIds == null) {
              setFaceIds(new java.util.ArrayList<String>(faceIds.length));
          }
          for (String ele : faceIds) {
              this.faceIds.add(ele);
          }
          return this;
      }
docs: <p>
  An array of face IDs to delete.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setFaceIds(java.util.Collection)} or {@link #withFaceIds(java.util.Collection)} if you want to override
  the existing values.
  </p>
  
  @param faceIds
  An array of face IDs to delete.
  @return Returns a reference to this object so that method calls can be chained together.