docs: def get_md5_file_hash(filename):
      """Calculates the MD5 hash of a file
  
      :param str filename: The filename (including the path) of the file
      :return: Md5 hash of the file
      :rtype: str
      """
      import hashlib
      BLOCKSIZE = 65536
      hasher = hashlib.md5()
      with open(filename, 'rb') as afile:
          buf = afile.read(BLOCKSIZE)
          while len(buf) > 0:
              hasher.update(buf)
              buf = afile.read(BLOCKSIZE)
      return hasher.hexdigest()