docs: def lcopt_bw2_forwast_setup(use_autodownload=True, forwast_path=None, db_name=FORWAST_PROJECT_NAME, overwrite=False):        
  
      """
      Utility function to set up brightway2 to work correctly with lcopt using the FORWAST database instead of ecoinvent
  
      By default it'll try and download the forwast database as a .bw2package file from lca-net
  
      If you've downloaded the forwast .bw2package file already you can set use_autodownload=False and forwast_path to point to the downloaded file
  
      To overwrite an existing version, set overwrite=True
      """
  
      if use_autodownload:
          
          forwast_filepath = forwast_autodownload(FORWAST_URL)
  
      elif forwast_path is not None:
  
          forwast_filepath = forwast_path
  
      else:
          raise ValueError('Need a path if not using autodownload')
  
      if storage.project_type  == 'single':
          db_name = storage.single_project_name
          if bw2_project_exists(db_name):
              bw2.projects.set_current(db_name)
          else:
              bw2.projects.set_current(db_name)
              bw2.bw2setup()
  
      else:
      
          if db_name in bw2.projects:
              if overwrite:                                           
                  bw2.projects.delete_project(name=db_name, delete_dir=True)
              else:
                  print('Looks like bw2 is already set up for the FORWAST database - if you want to overwrite the existing version run lcopt.utils.lcopt_bw2_forwast_setup in a python shell using overwrite = True')
                  return False
  
          # no need to keep running bw2setup - we can just copy a blank project which has been set up before
          if not bw2_project_exists(DEFAULT_BIOSPHERE_PROJECT):
              lcopt_biosphere_setup()
          
          bw2.projects.set_current(DEFAULT_BIOSPHERE_PROJECT)
          bw2.create_core_migrations()
          bw2.projects.copy_project(db_name, switch=True)
  
      bw2.BW2Package.import_file(forwast_filepath)
  
      return True