parameters: (input, output)
docstring: Decode a file.
docstring_summary: Decode a file.
docstring_tokens: Decode a file .
function: def decode(input, output):
      """Decode a file."""
      while True:
          line = input.readline()
          if not line:
              break
          s = binascii.a2b_base64(line)
          output.write(s)
function_tokens: def decode ( input , output ) : while True : line = input . readline ( ) if not line : break s = binascii . a2b_base64 ( line ) output . write ( s )