code: def _get_file_size(file_path):
      
  
      size = getsize(file_path)
  
      file_size = bytearray(4)
      pack_into(b"I", file_size, 0, size)
  
      return file_size
docs: Returns the size of the file at the specified file path, formatted as a 4-byte unsigned
         integer bytearray.