rematch+ts遇到的问题

从官网看例子，写代码，遇到几个ts验证过不了的问题。 例子代码：

models/count.js代码：

import { createModel } from '@rematch/core'
import { RootModel } from '.'

const count = createModel<RootModel>()({
    state: 0, // initial state
    reducers: {
        // handle state changes with pure functions
        increment(state, payload: number = 1) {
            return state + payload
        },
    },
    effects: (dispatch) => ({
        // handle state changes with impure functions.
        // use async/await for async actions
        async incrementAsync(payload?: number, state?: any) {
            console.log('This is current root state', state, payload);
            await new Promise(resolve => setTimeout(resolve, 1000))
            dispatch.count.increment(payload)
        },
    }),
})

models/index.js代码：

import { Models } from '@rematch/core'
import count from './count'

export interface RootModel extends Models<RootModel> {
    count: typeof count
}

const models: RootModel = { 
  count,
}
export default models

报错1：ESLint: Dependency cycle detected.(import/no-cycle)

原因： 在上面两个文件中，index.js中依赖了count.js，count.js中又引入了index.js，造成了循环依赖

解决办法： 将count.js中的rootModel引入改为import type { RootModel } from '.',导入类型， 这是语法静态类型检查-flow工具的一个语法。

报错2：Expected 0 arguments, but got 1.

错误位置：modles/count.js的effects函数中

    effects: (dispatch) => ({
        // handle state changes with impure functions.
        // use async/await for async actions
        async incrementAsync(payload?: number, state?: any) {
            console.log('This is current root state', state, payload);
            await new Promise(resolve => setTimeout(resolve, 1000))
            dispatch.count.increment(payload)    //此处报错：Expected 0 arguments, but got 1.
        },
    }),

此处调用的是在reduce中定义的increment方法，可看到此处ts的定义是payload参数为可选，默认值为1，可传参或不传参，但不知道为何出现上面的报错Expected 0 arguments, but got 1.。

increment(state, payload: number = 1) {
...
}

解决办法： 将increment的方法的payload类型设置为payload: number | undefined。

increment(state, payload: number | undefined) {
    return state + (Number(Boolean(payload))
}

猜测原因：因为incrementAsync的payload?: number参数也是可选项，如果未传参时，payload此时为undefined，那么在dispatch.count.increment(payload)时，会匹配错误。