Get identifier of all collections that contain a given image.

        Parameters
        ----------
        image_id : string
            Unique identifierof image object

        Returns
        -------
        List(string)
            List of image collection identifier

def get_collections_for_image(self, image_id):
        """Get identifier of all collections that contain a given image.

        Parameters
        ----------
        image_id : string
            Unique identifierof image object

        Returns
        -------
        List(string)
            List of image collection identifier
        """
        result = []
        # Get all active collections that contain the image identifier
        for document in self.collection.find({'active' : True, 'images.identifier' : image_id}):
            result.append(str(document['_id']))
        return result