Store all autoload files in plugin output

[strorch]

Is it possible to store all autoload files with functions in one file into composer-config-plugin-output dir? In default case I have to add this files into root composer.json. It will be really nice if I can do require Builder::path('functions') and this file will contain something like

  namespace foo\bar {
        function a(){}
  }
  
  namespace f\b {
      function b(){}
  }