Typings for `Cache.Create`option

[stefanosandes]

In the typings, the cache is expecting an object that not includes a Create method. It's correct? What's the right way to use it with Typescript?

export interface Cache<K, V> {
  get(key: K): V;
  set(key: K, value: V): void;
  has(key: K): boolean;
}

export type Serializer = (args: any[]) => string;

export interface Options<F extends Func> {
  cache?: Cache<string, ReturnType<F>>;
  serializer?: Serializer;
  strategy?: MemoizeFunc;
}

The tslint error output:

Argument of type '{ cache: { create(): { has(key: any): boolean; get(key: any): any; set(key: any, value: any): void; }; }; }' is not assignable to parameter of type 'Options<() => string>'.
  Types of property 'cache' are incompatible.
    Type '{ create(): { has(key: any): boolean; get(key: any): any; set(key: any, value: any): void; }; }' is not assignable to type 'Cache<string, string>'.
      Object literal may only specify known properties, and 'create' does not exist in type 'Cache<string, string>'.ts(2345)

[martinschayna]

Looks like there is the same bug for Flowtype either (see flow-typed repo, maybe automatic conversion from TS?). Documentation and source code use create.

[tdev9]

I've created this PR: #80 which will fix it.

[tdev9]

I guess it should be closed because #80 has fixed it.