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Migrate codebase to TypeScript 7 #713

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4 changes: 2 additions & 2 deletions AGENTS.md
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Expand Up @@ -37,7 +37,7 @@ npm run test:e2e
npm test

# Check JSDoc comment syntax and `{@link}` references
npm exec typedoc -- --treatValidationWarningsAsErrors --emit none
npm run docs -- --treatValidationWarningsAsErrors --emit none

# Regenerate package-lock.json
# Note: repo .npmrc pins registry to npmjs.org, so a plain `npm i` is safe even
Expand Down Expand Up @@ -85,7 +85,7 @@ View (App) <--PostMessageTransport--> Host (AppBridge) <--MCP Client--> MCP Serv

JSDoc `@example` tags should pull type-checked code from companion `.examples.ts` files (e.g., `app.ts` → `app.examples.ts`). Use ` ```ts source="./file.examples.ts#regionName" ` fences referencing `//#region regionName` blocks; region names follow `exportedName_variant` or `ClassName_methodName_variant` pattern (e.g., `useApp_basicUsage`, `App_hostCapabilities_checkAfterConnection`). For whole-file inclusion (any file type), omit the `#regionName`. Run `npm run sync:snippets` to sync.

Standalone docs in `docs/` (listed in `typedoc.config.mjs` `projectDocuments`) can also have type-checked companion `.ts`/`.tsx` files using the same pattern.
Standalone docs in `docs/` (listed in `typedoc.config.ts` `projectDocuments`) can also have type-checked companion `.ts`/`.tsx` files using the same pattern.

## Full Examples

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5 changes: 3 additions & 2 deletions build.bun.ts
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Expand Up @@ -2,8 +2,9 @@
import { $ } from "bun";
import { cpSync, mkdirSync } from "node:fs";

// Run TypeScript compiler for type declarations
await $`tsc`;
// TypeDoc and declaration emit still require TypeScript's JavaScript compiler API.
// Keep this compatibility lane explicit while native TypeScript 7 checks source.
await $`node node_modules/typescript/bin/tsc`;

// Copy schema.json (tsc is emitDeclarationOnly, Bun.build doesn't emit JSON assets).
// Needed for the "./schema.json" package export.
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2 changes: 2 additions & 0 deletions docs/quickstart.md
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Expand Up @@ -63,6 +63,7 @@ npm pkg set scripts.start='concurrently --raw "cross-env NODE_ENV=development IN
"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
Expand Down Expand Up @@ -91,6 +92,7 @@ npm pkg set scripts.start='concurrently --raw "cross-env NODE_ENV=development IN
"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-host/package.json
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Expand Up @@ -27,7 +27,7 @@
"cors": "^2.8.5",
"express": "^5.1.0",
"prettier": "^3.6.2",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
}
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2 changes: 1 addition & 1 deletion examples/basic-host/src/implementation.ts
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Expand Up @@ -7,7 +7,7 @@ import { getTheme, onThemeChange } from "./theme";
import { HOST_STYLE_VARIABLES } from "./host-styles";


const SANDBOX_PROXY_BASE_URL = "http://localhost:8081/sandbox.html";
const SANDBOX_PROXY_BASE_URL = `http://localhost:${import.meta.env.VITE_SANDBOX_PORT ?? "8081"}/sandbox.html`;
const IMPLEMENTATION = { name: "MCP Apps Host", version: "1.0.0" };


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1 change: 1 addition & 0 deletions examples/basic-host/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"resolveJsonModule": true,
"isolatedModules": true,
"verbatimModuleSyntax": true,
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2 changes: 1 addition & 1 deletion examples/basic-server-preact/package.json
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Expand Up @@ -38,7 +38,7 @@
"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/basic-server-preact/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-preact/tsconfig.server.json
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-server-react/package.json
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Expand Up @@ -51,7 +51,7 @@
"@vitejs/plugin-react": "^4.3.4",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
}
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1 change: 1 addition & 0 deletions examples/basic-server-react/tsconfig.json
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Expand Up @@ -4,6 +4,7 @@
"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-react/tsconfig.server.json
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Expand Up @@ -4,6 +4,7 @@
"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-server-solid/package.json
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Expand Up @@ -37,7 +37,7 @@
"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0",
"vite-plugin-solid": "^2.11.12"
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1 change: 1 addition & 0 deletions examples/basic-server-solid/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-solid/tsconfig.server.json
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Expand Up @@ -4,6 +4,7 @@
"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-server-svelte/package.json
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Expand Up @@ -38,7 +38,7 @@
"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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0 ...ples/basic-server-svelte/svelte.config.js → ...ples/basic-server-svelte/svelte.config.ts
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1 change: 1 addition & 0 deletions examples/basic-server-svelte/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-svelte/tsconfig.server.json
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Expand Up @@ -4,6 +4,7 @@
"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-server-vanillajs/package.json
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Expand Up @@ -36,7 +36,7 @@
"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/basic-server-vanillajs/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-vanillajs/tsconfig.server.json
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/basic-server-vue/package.json
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Expand Up @@ -38,7 +38,7 @@
"@vitejs/plugin-vue": "^5.0.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/basic-server-vue/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/basic-server-vue/tsconfig.server.json
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/budget-allocator-server/package.json
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Expand Up @@ -39,7 +39,7 @@
"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/budget-allocator-server/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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1 change: 1 addition & 0 deletions examples/budget-allocator-server/tsconfig.server.json
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/cohort-heatmap-server/package.json
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Expand Up @@ -43,7 +43,7 @@
"@vitejs/plugin-react": "^4.3.4",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/cohort-heatmap-server/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/customer-segmentation-server/package.json
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"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/customer-segmentation-server/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/debug-server/package.json
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"cors": "^2.8.5",
"cross-env": "^10.1.0",
"express": "^5.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
}
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1 change: 1 addition & 0 deletions examples/debug-server/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/integration-server/package.json
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"@types/react-dom": "^19.2.2",
"@vitejs/plugin-react": "^4.3.4",
"concurrently": "^9.2.1",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/lazy-auth-server/package.json
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"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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2 changes: 1 addition & 1 deletion examples/map-server/package.json
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"@types/node": "22.10.0",
"concurrently": "^9.2.1",
"cross-env": "^10.1.0",
"typescript": "^5.9.3",
"typescript": "^7.0.2",
"vite": "^6.0.0",
"vite-plugin-singlefile": "^2.3.0"
},
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1 change: 1 addition & 0 deletions examples/map-server/tsconfig.json
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"lib": ["ESNext", "DOM", "DOM.Iterable"],
"module": "ESNext",
"moduleResolution": "bundler",
"types": ["node", "vite/client"],
"allowImportingTsExtensions": true,
"resolveJsonModule": true,
"isolatedModules": true,
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"lib": ["ES2022"],
"module": "NodeNext",
"moduleResolution": "NodeNext",
"types": ["node"],
"declaration": true,
"emitDeclarationOnly": true,
"outDir": "./dist",
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