code: func (*Link) XXX_OneofWrappers() []interface{} {
  	return []interface{}{
  		(*Link_Url)(nil),
  		(*Link_LogdogStream)(nil),
  		(*Link_IsolateObject)(nil),
  		(*Link_DmLink)(nil),
  	}
  }
docs: // XXX_OneofWrappers is for the internal use of the proto package.