strictFunctionTypes set to true

types/elo-rank/index.d.ts

@@ -3,7 +3,7 @@
 // Definitions by: Antonio Pavlinovic <https://github.com/apavlinovic>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
-export class EloRank {
+export default class EloRank {
 	constructor(kFactor?: number);
 	
 	setKFactor(kFactor: number): void;

types/elo-rank/tsconfig.json

@@ -7,6 +7,7 @@
         "noImplicitAny": true,
         "noImplicitThis": true,
         "strictNullChecks": true,
+        "strictFunctionTypes": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"