code: public SkewedInfo withSkewedColumnNames(String... skewedColumnNames) {
          if (this.skewedColumnNames == null) {
              setSkewedColumnNames(new java.util.ArrayList<String>(skewedColumnNames.length));
          }
          for (String ele : skewedColumnNames) {
              this.skewedColumnNames.add(ele);
          }
          return this;
      }
docs: <p>
  A list of names of columns that contain skewed values.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSkewedColumnNames(java.util.Collection)} or {@link #withSkewedColumnNames(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param skewedColumnNames
  A list of names of columns that contain skewed values.
  @return Returns a reference to this object so that method calls can be chained together.