txpostgres: _connect() got an unexpected keyword argument 'async'

[donalm]

The following example from the txpostgres documentation no longer works with psycopg2cffi:

#!/usr/bin/env pypy                                                             
                                                                                
from txpostgres import txpostgres                                               
                                                                                
from twisted.internet import reactor                                            
from twisted.python import log, util                                            
                                                                                
credentials = {                                                                 
    "dbname": "DBNAME",                                                         
    "user": "USER",                                                             
    "password": "PASSWORD",                                                     
    "port": 5432,                                                               
    "host": "localhost"                                                         
}                                                                               
                                                                                
conn = txpostgres.Connection()                                                  
d = conn.connect(**credentials)                                                 
# run the query and print the result                                            
d.addCallback(lambda _: conn.runQuery('select tablename from pg_tables'))       
d.addCallback(lambda result: util.println('All tables:', result))               
                                                                                
# close the connection, log any errors and stop the reactor                     
d.addCallback(lambda _: conn.close())                                           
d.addErrback(log.err)                                                           
d.addBoth(lambda _: reactor.stop())                                             
                                                                                
# start the reactor to kick off connection estabilishing                        
reactor.run()

The result is:

Unhandled Error
Traceback (most recent call last):
  File "./testscript.py", line 17, in <module>
    d = conn.connect(**credentials)
--- <exception caught here> ---
  File "/Users/donal/Geek/txpostgres/venv/site-packages/txpostgres/txpostgres.py", line 444, in connect
    self._connection = self.connectionFactory(*args, **kwargs)
  File "/Users/donal/Geek/txpostgres/venv/site-packages/psycopg2cffi/__init__.py", line 111, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
exceptions.TypeError: _connect() got an unexpected keyword argument 'async'

It looks like some similar issues were resolved in commit e9434546ad728b5cbc327d4d620d527fd3ffe362 but this one may have been missed.