def METHOD_NAME(self, file_path: str) -> None:
    """Update the list of sync-always-enabled peers from a file."""
    if not os.path.isfile(file_path):
        raise SysctlException(f'file not found: {file_path}')
    values: list[str]
    with open(file_path, 'r') as fp:
        values = parse_text(fp.read())
    self.connections.set_always_enable_sync(values)