**Describe the bug** Importing ABC directly from collections was deprecated and will be removed in Python 3.10 . Use collections.abc instead. **To Reproduce** ``` rethinkdb/ast.py 87: elif isinstance(val, collections.Callable): 108: elif isinstance(val, collections.Mapping): 115: elif isinstance(val, collections.Iterable): ``` **System info** - Python client version: 3.8