Map<String, String> collection = new HashMap<String, String>();
collection.put("name", "create example");
Map<String, Object> params = new HashMap<String, Object>();
params.put("collection", collection);
Map response = arv.call("collections", "create", params);
Map<String, String> collection = new HashMap<String, String>();
collection.put("name", "create example");
Map<String, Object> params = new HashMap<String, Object>();
params.put("collection", collection);
Map response = arv.call("collections", "create", params);