Webpack 4 with React typescript generates strange source code in dev tools









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0
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I upgraded webpack from version 3.8.1 to version 4.15.1 and when I wanted to debug code I noticed, that in my source code of my typescript components is some sort of harmony or webpack injection.



enter image description here



In webpack 3.8.1 it looked like this



enter image description here



I dont know exactly why is this happening since all what I did is that I updated several npm packages which are required for webpack 4



Package.json



 
"name": "App",
"private": true,
"version": "0.0.0",
"devDependencies":
"@types/tapable": "^0.2.5",
"@types/webpack": "4.0.0",
"@types/webpack-env": "1.13.6",
"aspnet-webpack": "3.0.0",
"aspnet-webpack-react": "3.0.0",
"awesome-typescript-loader": "5.2.0",
"babel-core": "^6.26.3",
"css-loader": "0.28.4",
"event-source-polyfill": "1.0.4",
"file-loader": "2.0.0",
"isomorphic-fetch": "2.2.1",
"less": "3.7.1",
"less-loader": "4.1.0",
"mini-css-extract-plugin": "0.4.4",
"node-noop": "1.0.0",
"style-loader": "0.18.2",
"typescript": "3.0.1",
"url-loader": "0.5.9",
"webpack": "^4.15.1",
"webpack-cli": "^3.0.8",
"webpack-dev-middleware": "^3.1.3",
"webpack-hot-middleware": "^2.22.2"
,
"dependencies":
"@progress/kendo-data-query": "1.4.1",
"@progress/kendo-drawing": "1.5.7",
"@progress/kendo-react-buttons": "2.3.1",
"@progress/kendo-react-dateinputs": "2.3.1",
"@progress/kendo-react-dialogs": "2.3.1",
"@progress/kendo-react-dropdowns": "2.3.1",
"@progress/kendo-react-grid": "2.3.1",
"@progress/kendo-react-inputs": "2.3.1",
"@progress/kendo-react-intl": "2.3.1",
"@progress/kendo-react-layout": "2.3.1",
"@progress/kendo-react-pdf": "2.3.1",
"@progress/kendo-react-popup": "2.3.1",
"@progress/kendo-react-animation": "2.3.1",
"@progress/kendo-theme-default": "2.60.0",
"@types/deep-equal": "1.0.1",
"@types/history": "4.6.0",
"@types/prop-types": "15.5.6",
"@types/react": "16.4.2",
"@types/react-dom": "16.0.7",
"@types/react-hot-loader": "3.0.3",
"@types/react-redux": "4.4.45",
"@types/react-router": "4.0.12",
"@types/react-router-dom": "4.0.5",
"@types/react-router-redux": "5.0.3",
"babel-polyfill": "6.26.0",
"bootstrap-less-port": "0.3.0",
"deep-equal": "1.0.1",
"history": "4.6.3",
"jquery": "3.3.1",
"moment": "2.22.2",
"query-string": "5.1.1",
"react": "16.4.2",
"react-appinsights": "1.0.4",
"react-dom": "16.4.2",
"react-hot-loader": "3.0.0-beta.7",
"react-redux": "5.0.5",
"react-resize-detector": "3.1.1",
"react-router-dom": "4.3.1",
"react-router-redux": "5.0.0-alpha.6",
"redux": "3.7.1",
"redux-form": "7.4.2",
"redux-logger": "3.0.6",
"redux-thunk": "2.2.0",
"serialize-error": "2.1.0"
,
"scripts":
"build-dev": "webpack --config webpack.config.vendor.js --env.environment=development && webpack --config webpack.config.js --env.environment=development",
"build-prod": "webpack --config webpack.config.vendor.js --env.prod && webpack --config webpack.config.js --env.prod"




Tsconfig



 
"compilerOptions":
"baseUrl": "ClientApp",
"module": "esnext",
"moduleResolution": "node",
"target": "es6",
"jsx": "react",
"experimentalDecorators": true,
"sourceMap": true,
"inlineSources": true,
"removeComments": true,
"skipDefaultLibCheck": true,
"strict": false,
"lib": [ "es6", "dom" ],
"noImplicitAny": false,
"allowSyntheticDefaultImports": true
,
"exclude": [
"bin",
"node_modules"
]



webpack.config



 const path = require('path');
const webpack = require('webpack');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = (env) =>
if (!env)
env =
environment: "development"
;

const isDevBuild = env && env.environment === "development";

return [
stats: modules: false ,
entry: 'main-client': './ClientApp/boot-client.tsx' ,
mode: "development",
resolve:
extensions: ['.js', '.jsx', '.ts', '.tsx'],
modules: [
'./node_modules',
'./ClientApp'
]
,
output:
path: path.join(__dirname, clientBundleOutputDir),
filename: '[name].js',
publicPath: 'dist/'
,
module:
rules: [
test: /.tsx?$/, include: /ClientApp/, use: 'awesome-typescript-loader?silent=true' ,
jpg,

test: /.less$/,
use: [
loader: 'style-loader' ,
loader: 'css-loader' ,
loader: 'less-loader', options: strictMath: true, noIeCompat: true
]
,
woff2
]
,
plugins: [
new CheckerPlugin(),
new MiniCssExtractPlugin(
filename: "site.css",
chunkFilename: "[id].css"
),
new webpack.DllReferencePlugin(
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
),
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin(
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
)
] : [
])
];
;









share|improve this question





















  • you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
    – PlayMa256
    Nov 12 at 11:17










  • when I included devtool prop in webpack.config it didnt show any source files at all
    – Martin
    Nov 12 at 11:33














up vote
0
down vote

favorite












I upgraded webpack from version 3.8.1 to version 4.15.1 and when I wanted to debug code I noticed, that in my source code of my typescript components is some sort of harmony or webpack injection.



enter image description here



In webpack 3.8.1 it looked like this



enter image description here



I dont know exactly why is this happening since all what I did is that I updated several npm packages which are required for webpack 4



Package.json



 
"name": "App",
"private": true,
"version": "0.0.0",
"devDependencies":
"@types/tapable": "^0.2.5",
"@types/webpack": "4.0.0",
"@types/webpack-env": "1.13.6",
"aspnet-webpack": "3.0.0",
"aspnet-webpack-react": "3.0.0",
"awesome-typescript-loader": "5.2.0",
"babel-core": "^6.26.3",
"css-loader": "0.28.4",
"event-source-polyfill": "1.0.4",
"file-loader": "2.0.0",
"isomorphic-fetch": "2.2.1",
"less": "3.7.1",
"less-loader": "4.1.0",
"mini-css-extract-plugin": "0.4.4",
"node-noop": "1.0.0",
"style-loader": "0.18.2",
"typescript": "3.0.1",
"url-loader": "0.5.9",
"webpack": "^4.15.1",
"webpack-cli": "^3.0.8",
"webpack-dev-middleware": "^3.1.3",
"webpack-hot-middleware": "^2.22.2"
,
"dependencies":
"@progress/kendo-data-query": "1.4.1",
"@progress/kendo-drawing": "1.5.7",
"@progress/kendo-react-buttons": "2.3.1",
"@progress/kendo-react-dateinputs": "2.3.1",
"@progress/kendo-react-dialogs": "2.3.1",
"@progress/kendo-react-dropdowns": "2.3.1",
"@progress/kendo-react-grid": "2.3.1",
"@progress/kendo-react-inputs": "2.3.1",
"@progress/kendo-react-intl": "2.3.1",
"@progress/kendo-react-layout": "2.3.1",
"@progress/kendo-react-pdf": "2.3.1",
"@progress/kendo-react-popup": "2.3.1",
"@progress/kendo-react-animation": "2.3.1",
"@progress/kendo-theme-default": "2.60.0",
"@types/deep-equal": "1.0.1",
"@types/history": "4.6.0",
"@types/prop-types": "15.5.6",
"@types/react": "16.4.2",
"@types/react-dom": "16.0.7",
"@types/react-hot-loader": "3.0.3",
"@types/react-redux": "4.4.45",
"@types/react-router": "4.0.12",
"@types/react-router-dom": "4.0.5",
"@types/react-router-redux": "5.0.3",
"babel-polyfill": "6.26.0",
"bootstrap-less-port": "0.3.0",
"deep-equal": "1.0.1",
"history": "4.6.3",
"jquery": "3.3.1",
"moment": "2.22.2",
"query-string": "5.1.1",
"react": "16.4.2",
"react-appinsights": "1.0.4",
"react-dom": "16.4.2",
"react-hot-loader": "3.0.0-beta.7",
"react-redux": "5.0.5",
"react-resize-detector": "3.1.1",
"react-router-dom": "4.3.1",
"react-router-redux": "5.0.0-alpha.6",
"redux": "3.7.1",
"redux-form": "7.4.2",
"redux-logger": "3.0.6",
"redux-thunk": "2.2.0",
"serialize-error": "2.1.0"
,
"scripts":
"build-dev": "webpack --config webpack.config.vendor.js --env.environment=development && webpack --config webpack.config.js --env.environment=development",
"build-prod": "webpack --config webpack.config.vendor.js --env.prod && webpack --config webpack.config.js --env.prod"




Tsconfig



 
"compilerOptions":
"baseUrl": "ClientApp",
"module": "esnext",
"moduleResolution": "node",
"target": "es6",
"jsx": "react",
"experimentalDecorators": true,
"sourceMap": true,
"inlineSources": true,
"removeComments": true,
"skipDefaultLibCheck": true,
"strict": false,
"lib": [ "es6", "dom" ],
"noImplicitAny": false,
"allowSyntheticDefaultImports": true
,
"exclude": [
"bin",
"node_modules"
]



webpack.config



 const path = require('path');
const webpack = require('webpack');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = (env) =>
if (!env)
env =
environment: "development"
;

const isDevBuild = env && env.environment === "development";

return [
stats: modules: false ,
entry: 'main-client': './ClientApp/boot-client.tsx' ,
mode: "development",
resolve:
extensions: ['.js', '.jsx', '.ts', '.tsx'],
modules: [
'./node_modules',
'./ClientApp'
]
,
output:
path: path.join(__dirname, clientBundleOutputDir),
filename: '[name].js',
publicPath: 'dist/'
,
module:
rules: [
test: /.tsx?$/, include: /ClientApp/, use: 'awesome-typescript-loader?silent=true' ,
jpg,

test: /.less$/,
use: [
loader: 'style-loader' ,
loader: 'css-loader' ,
loader: 'less-loader', options: strictMath: true, noIeCompat: true
]
,
woff2
]
,
plugins: [
new CheckerPlugin(),
new MiniCssExtractPlugin(
filename: "site.css",
chunkFilename: "[id].css"
),
new webpack.DllReferencePlugin(
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
),
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin(
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
)
] : [
])
];
;









share|improve this question





















  • you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
    – PlayMa256
    Nov 12 at 11:17










  • when I included devtool prop in webpack.config it didnt show any source files at all
    – Martin
    Nov 12 at 11:33












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I upgraded webpack from version 3.8.1 to version 4.15.1 and when I wanted to debug code I noticed, that in my source code of my typescript components is some sort of harmony or webpack injection.



enter image description here



In webpack 3.8.1 it looked like this



enter image description here



I dont know exactly why is this happening since all what I did is that I updated several npm packages which are required for webpack 4



Package.json



 
"name": "App",
"private": true,
"version": "0.0.0",
"devDependencies":
"@types/tapable": "^0.2.5",
"@types/webpack": "4.0.0",
"@types/webpack-env": "1.13.6",
"aspnet-webpack": "3.0.0",
"aspnet-webpack-react": "3.0.0",
"awesome-typescript-loader": "5.2.0",
"babel-core": "^6.26.3",
"css-loader": "0.28.4",
"event-source-polyfill": "1.0.4",
"file-loader": "2.0.0",
"isomorphic-fetch": "2.2.1",
"less": "3.7.1",
"less-loader": "4.1.0",
"mini-css-extract-plugin": "0.4.4",
"node-noop": "1.0.0",
"style-loader": "0.18.2",
"typescript": "3.0.1",
"url-loader": "0.5.9",
"webpack": "^4.15.1",
"webpack-cli": "^3.0.8",
"webpack-dev-middleware": "^3.1.3",
"webpack-hot-middleware": "^2.22.2"
,
"dependencies":
"@progress/kendo-data-query": "1.4.1",
"@progress/kendo-drawing": "1.5.7",
"@progress/kendo-react-buttons": "2.3.1",
"@progress/kendo-react-dateinputs": "2.3.1",
"@progress/kendo-react-dialogs": "2.3.1",
"@progress/kendo-react-dropdowns": "2.3.1",
"@progress/kendo-react-grid": "2.3.1",
"@progress/kendo-react-inputs": "2.3.1",
"@progress/kendo-react-intl": "2.3.1",
"@progress/kendo-react-layout": "2.3.1",
"@progress/kendo-react-pdf": "2.3.1",
"@progress/kendo-react-popup": "2.3.1",
"@progress/kendo-react-animation": "2.3.1",
"@progress/kendo-theme-default": "2.60.0",
"@types/deep-equal": "1.0.1",
"@types/history": "4.6.0",
"@types/prop-types": "15.5.6",
"@types/react": "16.4.2",
"@types/react-dom": "16.0.7",
"@types/react-hot-loader": "3.0.3",
"@types/react-redux": "4.4.45",
"@types/react-router": "4.0.12",
"@types/react-router-dom": "4.0.5",
"@types/react-router-redux": "5.0.3",
"babel-polyfill": "6.26.0",
"bootstrap-less-port": "0.3.0",
"deep-equal": "1.0.1",
"history": "4.6.3",
"jquery": "3.3.1",
"moment": "2.22.2",
"query-string": "5.1.1",
"react": "16.4.2",
"react-appinsights": "1.0.4",
"react-dom": "16.4.2",
"react-hot-loader": "3.0.0-beta.7",
"react-redux": "5.0.5",
"react-resize-detector": "3.1.1",
"react-router-dom": "4.3.1",
"react-router-redux": "5.0.0-alpha.6",
"redux": "3.7.1",
"redux-form": "7.4.2",
"redux-logger": "3.0.6",
"redux-thunk": "2.2.0",
"serialize-error": "2.1.0"
,
"scripts":
"build-dev": "webpack --config webpack.config.vendor.js --env.environment=development && webpack --config webpack.config.js --env.environment=development",
"build-prod": "webpack --config webpack.config.vendor.js --env.prod && webpack --config webpack.config.js --env.prod"




Tsconfig



 
"compilerOptions":
"baseUrl": "ClientApp",
"module": "esnext",
"moduleResolution": "node",
"target": "es6",
"jsx": "react",
"experimentalDecorators": true,
"sourceMap": true,
"inlineSources": true,
"removeComments": true,
"skipDefaultLibCheck": true,
"strict": false,
"lib": [ "es6", "dom" ],
"noImplicitAny": false,
"allowSyntheticDefaultImports": true
,
"exclude": [
"bin",
"node_modules"
]



webpack.config



 const path = require('path');
const webpack = require('webpack');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = (env) =>
if (!env)
env =
environment: "development"
;

const isDevBuild = env && env.environment === "development";

return [
stats: modules: false ,
entry: 'main-client': './ClientApp/boot-client.tsx' ,
mode: "development",
resolve:
extensions: ['.js', '.jsx', '.ts', '.tsx'],
modules: [
'./node_modules',
'./ClientApp'
]
,
output:
path: path.join(__dirname, clientBundleOutputDir),
filename: '[name].js',
publicPath: 'dist/'
,
module:
rules: [
test: /.tsx?$/, include: /ClientApp/, use: 'awesome-typescript-loader?silent=true' ,
jpg,

test: /.less$/,
use: [
loader: 'style-loader' ,
loader: 'css-loader' ,
loader: 'less-loader', options: strictMath: true, noIeCompat: true
]
,
woff2
]
,
plugins: [
new CheckerPlugin(),
new MiniCssExtractPlugin(
filename: "site.css",
chunkFilename: "[id].css"
),
new webpack.DllReferencePlugin(
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
),
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin(
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
)
] : [
])
];
;









share|improve this question













I upgraded webpack from version 3.8.1 to version 4.15.1 and when I wanted to debug code I noticed, that in my source code of my typescript components is some sort of harmony or webpack injection.



enter image description here



In webpack 3.8.1 it looked like this



enter image description here



I dont know exactly why is this happening since all what I did is that I updated several npm packages which are required for webpack 4



Package.json



 
"name": "App",
"private": true,
"version": "0.0.0",
"devDependencies":
"@types/tapable": "^0.2.5",
"@types/webpack": "4.0.0",
"@types/webpack-env": "1.13.6",
"aspnet-webpack": "3.0.0",
"aspnet-webpack-react": "3.0.0",
"awesome-typescript-loader": "5.2.0",
"babel-core": "^6.26.3",
"css-loader": "0.28.4",
"event-source-polyfill": "1.0.4",
"file-loader": "2.0.0",
"isomorphic-fetch": "2.2.1",
"less": "3.7.1",
"less-loader": "4.1.0",
"mini-css-extract-plugin": "0.4.4",
"node-noop": "1.0.0",
"style-loader": "0.18.2",
"typescript": "3.0.1",
"url-loader": "0.5.9",
"webpack": "^4.15.1",
"webpack-cli": "^3.0.8",
"webpack-dev-middleware": "^3.1.3",
"webpack-hot-middleware": "^2.22.2"
,
"dependencies":
"@progress/kendo-data-query": "1.4.1",
"@progress/kendo-drawing": "1.5.7",
"@progress/kendo-react-buttons": "2.3.1",
"@progress/kendo-react-dateinputs": "2.3.1",
"@progress/kendo-react-dialogs": "2.3.1",
"@progress/kendo-react-dropdowns": "2.3.1",
"@progress/kendo-react-grid": "2.3.1",
"@progress/kendo-react-inputs": "2.3.1",
"@progress/kendo-react-intl": "2.3.1",
"@progress/kendo-react-layout": "2.3.1",
"@progress/kendo-react-pdf": "2.3.1",
"@progress/kendo-react-popup": "2.3.1",
"@progress/kendo-react-animation": "2.3.1",
"@progress/kendo-theme-default": "2.60.0",
"@types/deep-equal": "1.0.1",
"@types/history": "4.6.0",
"@types/prop-types": "15.5.6",
"@types/react": "16.4.2",
"@types/react-dom": "16.0.7",
"@types/react-hot-loader": "3.0.3",
"@types/react-redux": "4.4.45",
"@types/react-router": "4.0.12",
"@types/react-router-dom": "4.0.5",
"@types/react-router-redux": "5.0.3",
"babel-polyfill": "6.26.0",
"bootstrap-less-port": "0.3.0",
"deep-equal": "1.0.1",
"history": "4.6.3",
"jquery": "3.3.1",
"moment": "2.22.2",
"query-string": "5.1.1",
"react": "16.4.2",
"react-appinsights": "1.0.4",
"react-dom": "16.4.2",
"react-hot-loader": "3.0.0-beta.7",
"react-redux": "5.0.5",
"react-resize-detector": "3.1.1",
"react-router-dom": "4.3.1",
"react-router-redux": "5.0.0-alpha.6",
"redux": "3.7.1",
"redux-form": "7.4.2",
"redux-logger": "3.0.6",
"redux-thunk": "2.2.0",
"serialize-error": "2.1.0"
,
"scripts":
"build-dev": "webpack --config webpack.config.vendor.js --env.environment=development && webpack --config webpack.config.js --env.environment=development",
"build-prod": "webpack --config webpack.config.vendor.js --env.prod && webpack --config webpack.config.js --env.prod"




Tsconfig



 
"compilerOptions":
"baseUrl": "ClientApp",
"module": "esnext",
"moduleResolution": "node",
"target": "es6",
"jsx": "react",
"experimentalDecorators": true,
"sourceMap": true,
"inlineSources": true,
"removeComments": true,
"skipDefaultLibCheck": true,
"strict": false,
"lib": [ "es6", "dom" ],
"noImplicitAny": false,
"allowSyntheticDefaultImports": true
,
"exclude": [
"bin",
"node_modules"
]



webpack.config



 const path = require('path');
const webpack = require('webpack');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = (env) =>
if (!env)
env =
environment: "development"
;

const isDevBuild = env && env.environment === "development";

return [
stats: modules: false ,
entry: 'main-client': './ClientApp/boot-client.tsx' ,
mode: "development",
resolve:
extensions: ['.js', '.jsx', '.ts', '.tsx'],
modules: [
'./node_modules',
'./ClientApp'
]
,
output:
path: path.join(__dirname, clientBundleOutputDir),
filename: '[name].js',
publicPath: 'dist/'
,
module:
rules: [
test: /.tsx?$/, include: /ClientApp/, use: 'awesome-typescript-loader?silent=true' ,
jpg,

test: /.less$/,
use: [
loader: 'style-loader' ,
loader: 'css-loader' ,
loader: 'less-loader', options: strictMath: true, noIeCompat: true
]
,
woff2
]
,
plugins: [
new CheckerPlugin(),
new MiniCssExtractPlugin(
filename: "site.css",
chunkFilename: "[id].css"
),
new webpack.DllReferencePlugin(
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
),
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin(
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
)
] : [
])
];
;






typescript webpack google-chrome-devtools webpack-4






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asked Nov 12 at 7:35









Martin

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  • you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
    – PlayMa256
    Nov 12 at 11:17










  • when I included devtool prop in webpack.config it didnt show any source files at all
    – Martin
    Nov 12 at 11:33
















  • you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
    – PlayMa256
    Nov 12 at 11:17










  • when I included devtool prop in webpack.config it didnt show any source files at all
    – Martin
    Nov 12 at 11:33















you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
– PlayMa256
Nov 12 at 11:17




you are missing this: webpack.js.org/configuration/devtool/#src/components/Sidebar/…
– PlayMa256
Nov 12 at 11:17












when I included devtool prop in webpack.config it didnt show any source files at all
– Martin
Nov 12 at 11:33




when I included devtool prop in webpack.config it didnt show any source files at all
– Martin
Nov 12 at 11:33

















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