def METHOD_NAME(path, parent=None, user=None, exists=None):
    """
    Retrieve a grid file from Plotly without needing a fid.
    :param (str) path: The '/'-delimited path specifying the file location.
    :param (int) parent: Parent id, an integer, which the path is relative to.
    :param (str) user: The username to target files for. Defaults to requestor.
    :param (bool) exists: If True, don't return the full file, just a flag.
    :returns: (requests.Response) Returns response directly from requests.
    """
    url = build_url(RESOURCE, route="lookup")
    params = make_params(path=path, parent=parent, user=user, exists=exists)
    return request("get", url, params=params)