tsconfig.json

{
	"compilerOptions": {
		"checkJs": false,
		"esModuleInterop": true,
		"importHelpers": false,
		"isolatedModules": true,
		"resolveJsonModule": true,
		"skipLibCheck": true,
		"sourceMap": true,
		"strict": false,
		"types": ["node", "jest", "geojson", "cypress"],
		"typeRoots": ["./src/@types", "./node_modules/@types"],
		"outDir": "build/esm",
		"module": "esnext",
		"target": "es5",
		"lib": ["es6", "dom", "es2016", "es2017"],
		"jsx": "react",
		"declaration": true,
		"declarationDir": "./dist",
		"moduleResolution": "node",
		"noUnusedLocals": true,
		"noUnusedParameters": true,
		"noImplicitReturns": true,
		"noImplicitThis": true,
		"noImplicitAny": true,
		"strictNullChecks": true,
		"suppressImplicitAnyIndexErrors": true,
		"allowSyntheticDefaultImports": true,
		"allowJs": true,
		"baseUrl": "."
	},
	"include": ["src", "src/custom.d.tsx"],
	"exclude": ["node_modules", "lib"]
}