hunk.code_window: import { cache as defaultCache } from './config'
   import { initCache } from './cache'
   import { mergeConfigs } from './merge-config'
   import { isFunction, UNDEFINED } from './helper'
   import {
     SWRConfiguration,
     FullConfiguration,
  
hunk.labels: keep keep keep replace keep keep keep
hunk.after_edit: import { UNDEFINED } from './helper'
   import { useIsomorphicLayoutEffect } from './env'
  
hunk.file_path: src/utils/config-context.ts
hunk.type: replace
file: export default async function fetcher(...args) {
    const res = await fetch(...args)
    return res.json()
  }
  