Traceback (most recent call last):


 "/home/user/miniconda3/lib/python3.7/site-packages/ray/actor.py", line 613, in __del__
AttributeError: 'NoneType' object has no attribute 'get_global_worker'

Traceback (most recent call last):


 "asyncpg\protocol\prepared_stmt.pyx", line 146, in asyncpg.protocol.protocol.PreparedStatementState._encode_bind_msg


 "asyncpg\protocol\codecs/base.pyx", line 192, in asyncpg.protocol.protocol.Codec.encode


 "asyncpg\protocol\codecs/base.pyx", line 103, in asyncpg.protocol.protocol.Codec.encode_scalar


 "asyncpg\pgproto\./codecs/datetime.pyx", line 362, in asyncpg.pgproto.pgproto.interval_encode
AttributeError: 'str' object has no attribute 'days'
