module documentation
(source)

An asynchronous mapping to DB-API 2.0.
Class ​Connection A wrapper for a DB-API connection instance.
Class ​Connection​Lost This exception means that a db connection has been lost. Client code may try again.
Class ​Connection​Pool Represent a pool of connections to a DB-API 2.0 compliant database.
Class ​Transaction A lightweight wrapper for a DB-API 'cursor' object.