import { Action as ReduxAction } from "redux" ; export interface Action < T > extends ReduxAction < T > { /**
     * The meta property for the action (see Flux Standard Actions)
     */ meta ? : { [ key ] : any ; } ; } /**
 * A better typing for the Redux Action
 */ export interface ActionWithPayload < T extends string , P > extends Action < T > { /**
     * The payload of this action
     */ payload : P ; } param type param payload export function createAction < T extends string > ( type ) ; export function createAction < T extends string , P > ( type , payload , meta ? ) ; export function createAction < T extends string , P > ( type , payload ? , meta ? ) { return { type , payload , meta } ; } copyright type ActionsCreatorsMapObject = { [ actionCreator ] : ( ... args : any [ ] ) => any ; } ; export type ActionsUnion < A extends ActionsCreatorsMapObject > = ReturnType < A [ keyof A ] > ; export type ActionsOfType < ActionUnion , ActionType extends string > = ActionUnion extends Action < ActionType > ? ActionUnion : never ; export type StringMap < T > = { [ key ] : T ; } ;