code: public DescribeConfigRulesResult withConfigRules(ConfigRule... configRules) {
          if (this.configRules == null) {
              setConfigRules(new com.amazonaws.internal.SdkInternalList<ConfigRule>(configRules.length));
          }
          for (ConfigRule ele : configRules) {
              this.configRules.add(ele);
          }
          return this;
      }
docs: <p>
  The details about your AWS Config rules.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setConfigRules(java.util.Collection)} or {@link #withConfigRules(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param configRules
  The details about your AWS Config rules.
  @return Returns a reference to this object so that method calls can be chained together.