Add prebuild script to fetch event kinds from nostr library
- Add scripts/fetch-kinds.js to fetch kinds.json from central source - Update package.json with prebuild hook to auto-fetch on build - Regenerate eventKinds.js from https://git.mleku.dev/mleku/nostr/raw/branch/main/encoders/kind/kinds.json - Now uses single source of truth for all 184 event kinds 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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app/web/scripts/fetch-kinds.js
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214
app/web/scripts/fetch-kinds.js
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#!/usr/bin/env node
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/**
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* Fetches kinds.json from the nostr library and generates eventKinds.js
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* Run: node scripts/fetch-kinds.js
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*/
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const KINDS_URL = 'https://git.mleku.dev/mleku/nostr/raw/branch/main/encoders/kind/kinds.json';
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async function fetchKinds() {
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console.log(`Fetching kinds from ${KINDS_URL}...`);
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const response = await fetch(KINDS_URL);
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if (!response.ok) {
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throw new Error(`Failed to fetch kinds.json: ${response.status} ${response.statusText}`);
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}
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const data = await response.json();
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console.log(`Fetched ${Object.keys(data.kinds).length} kinds (version: ${data.version})`);
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return data;
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}
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function generateEventKinds(data) {
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const kinds = [];
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for (const [kindNum, info] of Object.entries(data.kinds)) {
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const k = parseInt(kindNum, 10);
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// Determine classification
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let isReplaceable = false;
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let isAddressable = false;
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let isEphemeral = false;
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if (info.classification === 'replaceable' || k === 0 || k === 3 ||
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(k >= data.ranges.replaceable.start && k < data.ranges.replaceable.end)) {
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isReplaceable = true;
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} else if (info.classification === 'parameterized' ||
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(k >= data.ranges.parameterized.start && k <= data.ranges.parameterized.end)) {
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isAddressable = true;
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} else if (info.classification === 'ephemeral' ||
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(k >= data.ranges.ephemeral.start && k < data.ranges.ephemeral.end)) {
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isEphemeral = true;
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}
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const entry = {
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kind: k,
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name: info.name,
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description: info.description,
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nip: info.nip || null,
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};
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if (isReplaceable) entry.isReplaceable = true;
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if (isAddressable) entry.isAddressable = true;
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if (isEphemeral) entry.isEphemeral = true;
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if (info.deprecated) entry.deprecated = true;
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if (info.spec) entry.spec = info.spec;
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// Add basic template
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entry.template = {
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kind: k,
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content: "",
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tags: []
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};
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// Add d tag for addressable events
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if (isAddressable) {
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entry.template.tags = [["d", "identifier"]];
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}
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kinds.push(entry);
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}
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// Sort by kind number
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kinds.sort((a, b) => a.kind - b.kind);
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return kinds;
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}
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function generateJS(kinds, data) {
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return `/**
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* Nostr Event Kinds Database
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* Auto-generated from ${KINDS_URL}
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* Version: ${data.version}
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* Source: ${data.source}
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*
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* DO NOT EDIT - This file is auto-generated by scripts/fetch-kinds.js
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*/
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export const eventKinds = ${JSON.stringify(kinds, null, 2)};
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// Kind ranges for classification
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export const kindRanges = ${JSON.stringify(data.ranges, null, 2)};
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// Privileged kinds (require auth)
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export const privilegedKinds = ${JSON.stringify(data.privileged)};
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// Directory kinds (public discovery)
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export const directoryKinds = ${JSON.stringify(data.directory)};
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// Kind aliases
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export const kindAliases = ${JSON.stringify(data.aliases, null, 2)};
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// Helper function to get event kind by number
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export function getEventKind(kindNumber) {
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return eventKinds.find(k => k.kind === kindNumber);
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}
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// Alias for compatibility
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export function getKindInfo(kind) {
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return getEventKind(kind);
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}
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export function getKindName(kind) {
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const info = getEventKind(kind);
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return info ? info.name : \`Kind \${kind}\`;
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}
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// Helper function to search event kinds by name or description
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export function searchEventKinds(query) {
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const lowerQuery = query.toLowerCase();
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return eventKinds.filter(k =>
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k.name.toLowerCase().includes(lowerQuery) ||
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k.description.toLowerCase().includes(lowerQuery) ||
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k.kind.toString().includes(query)
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);
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}
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// Helper function to get all event kinds grouped by category
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export function getEventKindsByCategory() {
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return {
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regular: eventKinds.filter(k => k.kind < 10000 && !k.isReplaceable),
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replaceable: eventKinds.filter(k => k.isReplaceable),
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ephemeral: eventKinds.filter(k => k.isEphemeral),
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addressable: eventKinds.filter(k => k.isAddressable)
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};
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}
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// Helper function to create a template event with current timestamp
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export function createTemplateEvent(kindNumber, userPubkey = null) {
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const kindInfo = getEventKind(kindNumber);
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if (!kindInfo) {
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return {
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kind: kindNumber,
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content: "",
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tags: [],
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created_at: Math.floor(Date.now() / 1000),
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pubkey: userPubkey || "<your_pubkey_here>"
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};
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}
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return {
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...kindInfo.template,
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created_at: Math.floor(Date.now() / 1000),
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pubkey: userPubkey || "<your_pubkey_here>"
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};
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}
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export function isReplaceable(kind) {
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if (kind === 0 || kind === 3) return true;
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return kind >= ${data.ranges.replaceable.start} && kind < ${data.ranges.replaceable.end};
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}
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export function isEphemeral(kind) {
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return kind >= ${data.ranges.ephemeral.start} && kind < ${data.ranges.ephemeral.end};
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}
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export function isAddressable(kind) {
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return kind >= ${data.ranges.parameterized.start} && kind <= ${data.ranges.parameterized.end};
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}
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export function isPrivileged(kind) {
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return privilegedKinds.includes(kind);
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}
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// Export kind categories for filtering in UI
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export const kindCategories = [
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{ id: "all", name: "All Kinds", filter: () => true },
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{ id: "regular", name: "Regular Events (0-9999)", filter: k => k.kind < 10000 && !k.isReplaceable },
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{ id: "replaceable", name: "Replaceable (10000-19999)", filter: k => k.isReplaceable },
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{ id: "ephemeral", name: "Ephemeral (20000-29999)", filter: k => k.isEphemeral },
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{ id: "addressable", name: "Addressable (30000-39999)", filter: k => k.isAddressable },
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{ id: "social", name: "Social", filter: k => [0, 1, 3, 6, 7].includes(k.kind) },
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{ id: "messaging", name: "Messaging", filter: k => [4, 9, 10, 11, 12, 14, 15, 40, 41, 42].includes(k.kind) },
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{ id: "lists", name: "Lists", filter: k => k.name.toLowerCase().includes("list") || k.name.toLowerCase().includes("set") },
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{ id: "marketplace", name: "Marketplace", filter: k => [30017, 30018, 30019, 30020, 1021, 1022, 30402, 30403].includes(k.kind) },
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{ id: "lightning", name: "Lightning/Zaps", filter: k => [9734, 9735, 9041, 9321, 7374, 7375, 7376].includes(k.kind) },
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{ id: "media", name: "Media", filter: k => [20, 21, 22, 1063, 1222, 1244].includes(k.kind) },
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{ id: "git", name: "Git/Code", filter: k => [818, 1337, 1617, 1618, 1619, 1621, 1622, 30617, 30618].includes(k.kind) },
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{ id: "calendar", name: "Calendar", filter: k => [31922, 31923, 31924, 31925].includes(k.kind) },
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{ id: "groups", name: "Groups", filter: k => (k.kind >= 9000 && k.kind <= 9030) || (k.kind >= 39000 && k.kind <= 39009) },
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];
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`;
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}
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async function main() {
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try {
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const data = await fetchKinds();
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const kinds = generateEventKinds(data);
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const js = generateJS(kinds, data);
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// Write to src/eventKinds.js
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const fs = await import('fs');
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const path = await import('path');
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const outPath = path.join(import.meta.dirname, '..', 'src', 'eventKinds.js');
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fs.writeFileSync(outPath, js);
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console.log(`Generated ${outPath} with ${kinds.length} kinds`);
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} catch (error) {
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console.error('Error:', error.message);
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process.exit(1);
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}
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}
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main();
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