code: public AttributeValue withSL(String... sL) {
          if (this.sL == null) {
              setSL(new java.util.ArrayList<String>(sL.length));
          }
          for (String ele : sL) {
              this.sL.add(ele);
          }
          return this;
      }
docs: <p>
  For a list of up to 10 strings. Maximum length for each string is 100 characters. Duplicate values are not
  recognized; all occurrences of the repeated value after the first of a repeated value are ignored.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSL(java.util.Collection)} or {@link #withSL(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param sL
  For a list of up to 10 strings. Maximum length for each string is 100 characters. Duplicate values are not
  recognized; all occurrences of the repeated value after the first of a repeated value are ignored.
  @return Returns a reference to this object so that method calls can be chained together.