'Execute a "more like this" search query against one or more fields and get back search hits.'

def morelikethis(self, index, doc_type, id, fields, **query_params):

    path = make_path(index, doc_type, id, '_mlt')
    query_params['mlt_fields'] = ','.join(fields)
    body = (query_params['body'] if ('body' in query_params) else None)
    return self._send_request('GET', path, body=body, params=query_params)
