code: def _copytree_src(root_start, select):
      assert root_start
      return (
          os.path.normpath(os.path.join(root_start, select.root))  #
          if select.root
          else root_start
      )
  
imports: import fnmatch
  import glob
  import logging
  import os
  import re
  import shutil
  from guild import util
label_desc: Use image node_id 13 for calling a global function with example usage: _copytree_src(root_start, select) and returns: unknown