code: public com.google.api.ads.adwords.axis.v201809.cm.AppConversionAppPlatform getAppPlatform() {
          return appPlatform;
      }
docs: Gets the appPlatform value for this AppConversion.
  
  @return appPlatform   * App platform of the app conversion tracker. This field defaults
  to NONE.
  Once it is set to a value other than NONE it cannot
  be changed again. It must be
  set at the same time as AppConversionType.
  <span class="constraint Selectable">This field
  can be selected using the value "AppPlatform".</span><span class="constraint
  Filterable">This field can be filtered on.</span>