Can't define multiple paths alias in typescript ?

[arpitprod]

I'm moving my codebase javascript to typescript. It was working with javascript code but not working with typescript code and I want to use multiple alias. This is my code

const {alias} = require('react-app-rewire-alias')
module.exports = function override(config) {
alias({
"Components": './src/ui/components',
"Pages": './src/ui/pages',
"Theme": './src/ui/theme.js',
"Api": './src/core/api',
"Hooks": './src/core/hooks',
"Utils": './src/core/utils',
})(config)
return config
}

but it's showing error
Module not found: Can't resolve 'Theme' in '/Users/abc/Documents/pro/src'

These are related versions

"react": "^16.13.1",
"react-app-rewired": "^2.1.6",
"react-app-rewire-alias": "^0.1.6",
"react-dom": "^16.13.1",
"react-scripts": "^3.4.3",
"typescript": "^4.0.2",

Please tell what I'm doing wrong

[arpitprod]

sorry, it was silly mistake from my side only.
theme filename is theme.ts and I'm writing theme.js in script.
"Theme": './src/ui/theme.js',
So, It's showing error Module not found: Can't resolve 'Theme' in '/Users/abc/Documents/pro/src'