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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def write_file_prefix(f: IO[Any], interpreter: str) -> None: """Write a shebang line. :param f: An open file handle. :param interpreter: A path to a python interpreter. """

    # if the provided path is too long for a shebang we should error out
    if len(interpreter) > BINPRM_BUF_SIZE:
        sys.exit(BINPRM_ERROR)

    f.write(b"#!" + interpreter.encode(sys.getfilesystemencoding()) + b"\n")