code: public ApiSuccessResponse replyEmail(String id, ReplyData replyData) throws ApiException {
          ApiResponse<ApiSuccessResponse> resp = replyEmailWithHttpInfo(id, replyData);
          return resp.getData();
      }
docs: reply email
  Reply to inbound email interaction specified in the id path parameter
  @param id id of interaction to reply (required)
  @param replyData Request parameters. (optional)
  @return ApiSuccessResponse
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body