class ViteRuby::Manifest

def react_refresh_preamble

Public: The content of the preamble needed by the React Refresh plugin. 
def react_refresh_preamble
  if dev_server_running?
    <<~REACT_REFRESH
      <script type="module">
        import RefreshRuntime from '#{ prefix_vite_asset('@react-refresh') }'
        RefreshRuntime.injectIntoGlobalHook(window)
        window.$RefreshReg$ = () => {}
        window.$RefreshSig$ = () => (type) => type
        window.__vite_plugin_react_preamble_installed__ = true
      </script>
    REACT_REFRESH
  end
end