def METHOD_NAME(segments_json):
    """Extracts the labels from a json file and puts them into
        an np array."""
    f = open(segments_json)
    segments = json.load(f)["segments"]
    labels = []
    str_labels = []
    for segment in segments:
        if not segment["label"] in str_labels:
            str_labels.append(segment["label"])
            labels.append(len(str_labels)-1)
        else:
            label_idx = np.where(np.asarray(str_labels) == segment["label"])[0][0]
            labels.append(label_idx)
    f.close()
    return np.asarray(labels)