tsconfig.umd-check.json

{
  "include": ["dist/umd/**/*.d.ts"],
  "compilerOptions": {
    "noEmit": true,
    "lib": [
      "esnext",
      "dom"
    ],
    "baseUrl": "dist/umd",
    "paths": {
        "vtk.js/*": ["./*"]
    }
  }
}