def METHOD_NAME(log_file):
    """
    Counts the definite leaks reported
    by valgrind, matches them against
    the whitelist.
    Parameters
    ----------
    log_file: str
        The path to the log file
    Returns
    -------
    list of str
        a list of the leak records as strings
    """
    with open(args.input_log_file, "r") as f:
        logs = f.read()
    # Find the pid and start and end of definite leak reports
    pid_token_end = logs.find("==", logs.find("==") + 1) + 2
    pid_token = logs[:pid_token_end]
    leaks_start = logs.find("are definitely lost")
    first_leak_line = logs.rfind("\n", 0, leaks_start)
    if leaks_start == -1 or first_leak_line == -1:
        # No leaks in log
        return []
    end_of_leaks = logs.find(f"{pid_token} LEAK SUMMARY:")
    if end_of_leaks == -1:
        print(f"\n***\n*** Test Failed for {log_file}: Malformed Valgrind log.\n***")
        sys.exit(1)
    leak_records_section = logs[first_leak_line + 1 : end_of_leaks]
    # Each leak record is separated by a line containing '==<pid>== \n'
    record_separator = f"{pid_token} \n"
    leak_records = leak_records_section.split(record_separator)
    # Check each leak against whitelist
    filtered_leak_records = []
    for leak in leak_records:
        for token in LEAK_WHITE_LIST:
            if not leak or leak.find(token) != -1:
                break
        else:
            filtered_leak_records.append(leak)
    return filtered_leak_records