code: public UntagResourceRequest withTagKeyList(String... tagKeyList) {
          if (this.tagKeyList == null) {
              setTagKeyList(new java.util.ArrayList<String>(tagKeyList.length));
          }
          for (String ele : tagKeyList) {
              this.tagKeyList.add(ele);
          }
          return this;
      }
docs: <p>
  A list of one or more tag keys for the tags that you are removing. Specify only the tag keys, not the tag values.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setTagKeyList(java.util.Collection)} or {@link #withTagKeyList(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param tagKeyList
  A list of one or more tag keys for the tags that you are removing. Specify only the tag keys, not the tag
  values.
  @return Returns a reference to this object so that method calls can be chained together.