export declare namespace LocalStorage { function insert(collection: string, doc: T, cb: Types.Callback): void; function find(collection: string, query: Types.Query, cb: Types.Callback): void; function remove(collection: string, query: Types.Query, cb: Types.Callback): void; } declare namespace Types { interface Index { keys: string[]; } type Callback = (err: Error | null, ret?: T) => any; type Query = { id: string; } | null | undefined; } export {};