code: public void setNameSource(com.google.api.ads.admanager.axis.v201808.ValueSourceType nameSource) {
          this.nameSource = nameSource;
      }
docs: Sets the nameSource value for this Product.
  
  @param nameSource   * Specifies the source of the {@link Product#name} value.
  To revert an overridden value to its default, set
  this field to {@link ValueSourceType#PARENT}.
  <span class="constraint Applicable">This attribute
  is applicable when:<ul><li>using programmatic guaranteed, using sales
  management.</li><li>not using programmatic, using sales management.</li></ul></span>