def fresh_operation(op_id):
    """Create a default operation object."""
    operation = {'path': '', 'headers': {}, 'header_params': {},
        'path_params': {}, 'query_params': {}, 'params': {}, 'files': None,
        'form_data': None, 'json': None, 'id': op_id, 'dl_path': None,
        'auth_settings': 'access_token'}
    return operation
