def METHOD_NAME(query_string, client_id, access_token):
    authstring = "Bearer {}".format(access_token)
    headers = {
        "Authorization": authstring,
        "Content-Type": "application/json",
        "Accept": "application/json",
    }
    params = {"queryString": query_string}
    method = "GET"
    url = "https://api.vistara.io/api/v2/tenants/{}/devices/search".format(client_id)
    resp = salt.utils.http.query(
        url=url, method=method, header_dict=headers, params=params, opts=__opts__
    )
    respbody = resp.get("body", None)
    if not respbody:
        return False
    respbodydict = salt.utils.json.loads(resp["body"])
    deviceresults = respbodydict["results"]
    return deviceresults