How to use the @sanity/webpack-integration/v3.getLoaders function in @sanity/webpack-integration

function getWebpackConfig(baseConfig, env) {
  /* eslint-disable strict */

  'use strict'

  if (!sanityContext) {
    throw new Error('Sanity context has not been set for Storybook!')
  }

  const wpConfig = Object.assign({}, sanityContext, {commonChunkPlugin: false})
  const sanityWpConfig = sanityServer.getWebpackDevConfig(wpConfig)
  const config = Object.assign({}, genDefaultConfig(baseConfig, env))
  const context = Object.assign({}, sanityContext, {webpack})
  config.plugins = config.plugins.concat(wpIntegration.getPlugins(context))
  config.module.rules = (config.module.rules || []).concat(wpIntegration.getLoaders(context))
  config.module.rules = config.module.rules.filter(skipCssLoader)
  config.module.rules.unshift(sanityWpConfig.module.rules.find(isCssLoader))

  const jsonLoaderAt = config.module.rules.findIndex(rule =>
    (rule.loader || '').includes('json-loader')
  )

  const jsonHackLoader = {
    test: /\.json$/,
    resourceQuery: /sanityPart=/,
    loader: require.resolve('./jsonHackLoader.js')
  }

  if (jsonLoaderAt !== -1) {
    config.module.rules.splice(jsonLoaderAt + 1, 0, jsonHackLoader)
  }