packages/flutter_tools/templates/plugin/ios-swift.tmpl/Classes/pluginClass.m.tmpl

#import "{{pluginClass}}.h"
#import <{{projectName}}/{{projectName}}-Swift.h>

@implementation {{pluginClass}}
+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
  [Swift{{pluginClass}} registerWithRegistrar:registrar];
}
@end