code: public void setTargetGender(com.google.api.ads.admanager.axis.v201808.GrpTargetGender targetGender) {
          this.targetGender = targetGender;
      }
docs: Sets the targetGender value for this GrpSettings.
  
  @param targetGender   * Specifies the target gender of the {@link LineItem}. This field
  is only applicable if
  {@link #provider} is not null.