old_contents: const { post } = require('koa-route');
  const schemas = require('schemas');
  const { users } = require('src/api');
  const { create } = require('src/middleware/api/methods');
  
  
  module.exports = [
    post('/users/', create(schemas.definitions.user.new, users.create))
  ];
  
new_contents: const _ = require('koa-route');
  const schemas = require('schemas');
  const { users } = require('src/api');
  const { create } = require('src/middleware/api/methods');
  
  
  module.exports = [
    _.post('/users/', create(schemas.definitions.user.new, users.create))
  ];
  
subject: Use koa-route as object rather than using its functions directly