code: def filepath_enumerate(paths):
      """Enumerate the file paths of all subfiles of the list of paths"""
      out = []
      for path in paths:
          if os.path.isfile(path):
              out.append(path)
          else:
              for root, dirs, files in os.walk(path):
                  for name in files:
                      out.append(
                          os.path.normpath(os.path.join(root, name))
                      )
      return out
  
file_path: dgl/tests/lint/lint.py
imports: from __future__ import print_function
  import argparse
  import codecs
  import os
  import re
  import sys
  import cpplint
  from cpplint import _cpplint_state
  from pylint import epylint
label_desc: Use image node_id 1 for calling a global function with example usage: filepath_enumerate(paths) and returns: out