2026-10-22 08:38:00 +08:00
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// ─────────────────────────────────────────────────────────────────────────────
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// 渲染数据唯一入口(五禁纪律的结构保证,spec §9.2/§10.4)
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//
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// 本主题的一切页面/组件只准经 loadRenderData() 取数——除此函数外,任何模块不得:
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// 禁① 连 PostgreSQL(或引入任何 DB 客户端)
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// 禁② 调 Control API
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// 禁③ 读 storage/ 原始输入
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// 禁④ 使用站点专属 seed 数据
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// 禁⑤ 构建期访问网络
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// 输入只有一份:SF_BUILD_INPUT 指向的目录(Task 2 build:create 物化的六文件——
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// site/content/taxonomies/routes/assets/render-manifest,canonical JSON)。
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// 新数据需求 = 改本文件 + 改 Task 2 物化面,不开侧门。
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//
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// 编码路径贯穿纪律(前置事实 7):slug/routePath 等字符串自落盘到 HTML 原样使用,
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// 本模块不得做百分号解码(percent-decode;Task 6 门禁按编码形态比对产物——测试对
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// 源码做令牌扫描钉死此纪律)。
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//
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// 缺省容忍(Task 1 审查移交契约):brand 恒可能为 {}(publish 首版恒写 {})、
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// name 可能是 siteKey 派生占位甚至空串——loadRenderData 在此统一归一:
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// name 空 → 'Untitled Site';brand 缺席 → {}。消费方禁止直接读 brand.xxx 落空。
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import { readFileSync } from 'node:fs'
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import { join, resolve } from 'node:path'
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import { RENDER_SNAPSHOT_FILES } from '@sf/contracts'
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2026-10-22 08:58:33 +08:00
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// ---- 类型定义(契约同源:Plan 4 Task 3 审查上提——载荷形状单一事实来源在
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// @sf/contracts/render-snapshot,与物化端 apps/api build/render-snapshot.ts 同源引用,
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// 镜像漂移即编译期破裂。此处 re-export 保持组件/测试的既有 import 面) ----
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// 六文件载荷类型:直接转发契约(字段语义见契约处 JSDoc)
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export type {
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ContentEntry,
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TaxonomyEntry,
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TaxonomyTerm,
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RouteEntry,
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AssetEntry,
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RenderManifestMeta,
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} from '@sf/contracts'
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export type { BrandConfigPayload as BrandConfig } from '@sf/contracts'
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import type {
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AssetEntry,
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BrandConfigPayload,
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ContentEntry,
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RenderManifestMeta,
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RouteEntry,
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TaxonomyEntry,
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} from '@sf/contracts'
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2026-10-22 08:38:00 +08:00
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2026-10-22 08:58:33 +08:00
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/**
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* 归一后的 site 面(本主题的消费视图,与载荷面 SiteConfigPayload 的差异):
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* - name 恒非空(载荷允许空串/占位——空值在 loadRenderData 归一为 'Untitled Site')
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* - brand 恒为对象(载荷端 publish v1 恒写 {},此处对缺席/非对象再兜底)
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* 消费方禁止直接读 brand.xxx 落空——一律经 ui.brandText 等纯函数。
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*/
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2026-10-22 08:38:00 +08:00
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export interface SiteConfig {
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/** 归一后恒非空(空串/缺席 → 'Untitled Site') */
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name: string
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origin: string
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locale: string
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/** 恒为对象(缺席 → {});键内容按缺省容忍读取 */
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2026-10-22 08:58:33 +08:00
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brand: BrandConfigPayload
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2026-10-22 08:38:00 +08:00
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}
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/** loadRenderData 的返回形状(assets 已建 public_path 索引) */
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export interface RenderData {
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site: SiteConfig
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contents: ContentEntry[]
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taxonomies: TaxonomyEntry[]
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routes: RouteEntry[]
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/** public_path → 资产条目(快索引) */
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assets: Map<string, AssetEntry>
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renderManifest: RenderManifestMeta
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}
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// ---- 读取与归一 ----
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/** 缓存单例:同 build 多次调用只读一次盘(key = 解析后的输入目录绝对路径) */
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const cache = new Map<string, RenderData>()
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/** 测试钩子:清缓存(正常构建路径不需要) */
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export function resetRenderDataCache(): void {
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cache.clear()
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}
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function requireInputDir(): string {
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const v = process.env.SF_BUILD_INPUT
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if (v === undefined || v === '') {
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throw new Error(
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'SF_BUILD_INPUT 未设置:load-render-data 需要 build:create 物化的六文件输入目录(五禁纪律——无环境变量之外的取数通道)',
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)
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}
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return v
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}
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/** 读单文件并 JSON.parse:缺失/损坏 → 明确错误(§7.6 禁静默——不产残缺数据面) */
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function readJsonFile(dir: string, file: string): unknown {
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const full = join(dir, file)
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let text: string
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try {
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text = readFileSync(full, 'utf8')
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} catch (e) {
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throw new Error(
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`Render Snapshot 文件缺失或不可读:${full}(SF_BUILD_INPUT=${dir})——build:create 物化产物不完整,拒绝静默空载`,
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{ cause: e },
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)
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}
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try {
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return JSON.parse(text) as unknown
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} catch (e) {
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throw new Error(`Render Snapshot 文件不是合法 JSON:${full}`, { cause: e })
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}
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}
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/** 顶层必须是数组:形状破裂 → 明确错误(不静默当空数组) */
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function asArray(v: unknown, file: string): unknown[] {
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if (!Array.isArray(v)) {
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throw new Error(`Render Snapshot 文件 ${file} 顶层必须是数组(got ${typeof v})——拒绝静默空`)
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}
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return v
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}
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/** site 归一:name 空 → 'Untitled Site';brand 缺席/非对象 → {};origin/locale 类型防御 */
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function normalizeSite(raw: unknown): SiteConfig {
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const o = (typeof raw === 'object' && raw !== null ? raw : {}) as {
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name?: unknown
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origin?: unknown
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locale?: unknown
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brand?: unknown
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}
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const name = typeof o.name === 'string' && o.name.trim() !== '' ? o.name : 'Untitled Site'
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const brand = (typeof o.brand === 'object' && o.brand !== null ? o.brand : {}) as BrandConfigPayload
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2026-10-22 08:38:00 +08:00
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return {
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name,
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origin: typeof o.origin === 'string' ? o.origin : '',
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locale: typeof o.locale === 'string' && o.locale !== '' ? o.locale : 'en',
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brand,
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}
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}
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function buildAssetIndex(entries: AssetEntry[]): Map<string, AssetEntry> {
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const index = new Map<string, AssetEntry>()
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for (const a of entries) index.set(a.publicPath, a)
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return index
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}
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/**
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* 加载渲染数据(全主题唯一取数通道)。
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* @param inputDir 缺省读 SF_BUILD_INPUT 环境变量;显式传目录主要供测试。
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* 目录 = Task 2 物化的 `artifacts/jobs/<jobId>/input/`(六文件,canonical JSON)。
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* 缺文件/形状破裂/环境变量缺席均抛明确错误;成功结果按目录缓存(同 build 只读一次盘)。
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*/
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export function loadRenderData(inputDir?: string): RenderData {
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const dir = resolve(inputDir ?? requireInputDir())
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const cached = cache.get(dir)
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if (cached !== undefined) return cached
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// 以 contracts 冻结清单驱动读取(RENDER_SNAPSHOT_FILES):清单外文件不读、
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// 清单内文件缺一即拒——齐备性与读取面都钉死在契约上
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const parsed = new Map<string, unknown>()
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for (const file of RENDER_SNAPSHOT_FILES) {
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parsed.set(file, readJsonFile(dir, file))
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}
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const site = normalizeSite(parsed.get('site.json'))
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const contents = asArray(parsed.get('content.json'), 'content.json') as ContentEntry[]
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const taxonomies = asArray(parsed.get('taxonomies.json'), 'taxonomies.json') as TaxonomyEntry[]
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const routes = asArray(parsed.get('routes.json'), 'routes.json') as RouteEntry[]
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2026-10-22 08:58:33 +08:00
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// 空路由表拒绝:正常发布站点至少含首页路由——空表面意味着上游物化/发布破裂;
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// 静默渲染会产零页站点,此处前置明错(§7.6 禁静默)
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if (routes.length === 0) {
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throw new Error(
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`routes.json 路由表为空(SF_BUILD_INPUT=${dir})——正常发布站点至少含首页路由,上游构建可能破裂;拒绝静默空载`,
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)
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}
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2026-10-22 08:38:00 +08:00
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const assets = buildAssetIndex(asArray(parsed.get('assets.json'), 'assets.json') as AssetEntry[])
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const renderManifest = parsed.get('render-manifest.json') as RenderManifestMeta
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const data: RenderData = { site, contents, taxonomies, routes, assets, renderManifest }
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cache.set(dir, data)
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return data
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}
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