code: public UpdateParameterGroupRequest withParameterNameValues(ParameterNameValue... parameterNameValues) {
          if (this.parameterNameValues == null) {
              setParameterNameValues(new java.util.ArrayList<ParameterNameValue>(parameterNameValues.length));
          }
          for (ParameterNameValue ele : parameterNameValues) {
              this.parameterNameValues.add(ele);
          }
          return this;
      }
docs: <p>
  An array of name-value pairs for the parameters in the group. Each element in the array represents a single
  parameter.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setParameterNameValues(java.util.Collection)} or {@link #withParameterNameValues(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param parameterNameValues
  An array of name-value pairs for the parameters in the group. Each element in the array represents a
  single parameter.
  @return Returns a reference to this object so that method calls can be chained together.