def detect_language(*documents):
    '''Returns language detected for each string in documents (*args)'''

    params = urllib.parse.urlencode({})
    headers = {
        'Content-Type': 'application/json',
        'Ocp-Apim-Subscription-Key': subscriptions['TextAnalytics']}

    # redefine body for proper text format
    body={"documents": []}
    ID = 0
    for document in documents:
       doc = {
            # assign unique idea
            "id": ID,
            "text": "'{}'".format(document)
        }
       body['documents'].append(doc)
       ID+= 1
    body = json.dumps(body)

    r = send_request('/text/analytics/v2.0/languages', params=params, headers=headers, body=body)
    return  [i['detectedLanguages'][0]['name'] for i in  r['documents']]