code: def read_mime_types(file):
      try:
          f = open(file, encoding="utf-8")
      except OSError:
          return None
      with f:
          db = MimeTypes()
          db.readfp(f, True)
          return db.types_map[True]
  
imports: import os
  import sys
  import posixpath
  import urllib.parse
label_desc: Use image node_id 6 for calling a global function with example usage: read_mime_types(file) and returns: db, None