code: def _destinsrc(src, dst):
      src = os.path.abspath(src)
      dst = os.path.abspath(dst)
      if not src.endswith(os.path.sep):
          src += os.path.sep
      if not dst.endswith(os.path.sep):
          dst += os.path.sep
      return dst.startswith(src)
  
imports: import os
  import sys
  import stat
  import fnmatch
  import collections
  import errno
label_desc: Use image node_id 21 for calling a global function with example usage: _destinsrc(src, dst) and returns: dst