Environment:

Reproducing:
Setup
Initialize new node repository
npm i kill-port
npm i --save-dev @types/kill-port
index.ts :
import killPort from "kill-port";
tsconfig.json:
{
"compilerOptions": {
"module": "commonjs",
"noImplicitAny": true,
"removeComments": true,
"preserveConstEnums": true,
"esModuleInterop": true,
"sourceMap": true,
"lib": [
"ES2015"
],
"moduleResolution": "node",
"target": "ES6",
},
"files": [
"index.ts"
]
}
Run: tsc
Output

Environment:
Reproducing:
Setup
Initialize new node repository
npm i kill-portnpm i --save-dev @types/kill-portindex.ts :
tsconfig.json:
{ "compilerOptions": { "module": "commonjs", "noImplicitAny": true, "removeComments": true, "preserveConstEnums": true, "esModuleInterop": true, "sourceMap": true, "lib": [ "ES2015" ], "moduleResolution": "node", "target": "ES6", }, "files": [ "index.ts" ] }Run:
tscOutput