boundedChannel.withScope([context])

• context <Object> 用于关联事件的共享对象
• 返回：BoundedChannelScope 一次性作用域对象

使用 JavaScript 的显式资源管理（using 语法）为同步操作创建一个一次性作用域。该作用域会自动发布 start 和 end 事件，进入绑定的存储，并在释放时处理清理。

🌐 Create a disposable scope for tracing a synchronous operation using JavaScript's explicit resource management (using syntax). The scope automatically publishes start and end events, enters bound stores, and handles cleanup when disposed.

import { boundedChannel } from 'node:diagnostics_channel';

const wc = boundedChannel('my-operation');

const context = { operationId: '123' };
{
  using scope = wc.withScope(context);
  // Stores are entered, start event is published

  // Perform work and set result on context
  context.result = 42;
}
// End event is published, stores are restored automaticallyconst { boundedChannel } = require('node:diagnostics_channel');

const wc = boundedChannel('my-operation');

const context = { operationId: '123' };
{
  using scope = wc.withScope(context);
  // Stores are entered, start event is published

  // Perform work and set result on context
  context.result = 42;
}
// End event is published, stores are restored automatically拷贝