@sample-stack/counter-module-browser/src/common/interfaces/context.ts

Sample core for higher packages to depend on

import { DataProxy } from '@apollo/client/cache';
import { ApolloClient } from '@apollo/client/index.js';

export interface MyContext {
    cache: DataProxy;
    getCacheKey: (options: { __typename: string; resource?: string; id?: string }) => string;
    apolloClient: ApolloClient<any>;
}