How to use the @pkgr/umd-globals.upperCamelCase function in @pkgr/umd-globals

return pkgFormats.map(format => {
      const isEsVersion = /^es(\d+|next)$/.test(format) && format !== 'es5'
      return {
        input: pkgInput,
        output: {
          file: path.resolve(
            pkgPath,
            `${pkgOutputDir}${format}${prod ? '.min' : ''}.js`,
          ),
          format: isEsVersion ? 'esm' : format,
          name: pkgGlobals[name] || upperCamelCase(normalizePkg(name)),
          globals,
          exports,
        },
        external: id =>
          external.some(pkg => id === pkg || id.startsWith(pkg + '/')),
        onwarn,
        plugins: [
          alias({
            resolve: EXTENSIONS.concat(ASSETS_EXTENSIONS),
            entries: Array.isArray(aliases)
              ? aliases.map(({ find, replacement }) => ({
                  find: tryRegExp(find),
                  replacement,
                }))
              : Object.entries(aliases).map(([find, replacement]) => ({
                  find: tryRegExp(find),

const pkgGlobals = external.reduce((pkgGlobals, pkg) => {
      if (pkgGlobals[pkg] == null) {
        pkgGlobals[pkg] = upperCamelCase(normalizePkg(pkg))
      }
      return pkgGlobals
    }, globals)