Cannot run dbshell command with Django 4.1.7

[stj-mv]

./manage.py dbshell gives

...
File "... /django/core/management/commands/dbshell.py", line 30, in handle
connection.client.runshell(options["parameters"])
TypeError: DatabaseClient.runshell() takes 1 positional argument but 2 were given

Reason:
In .../django/db/backends/base/client.py is runshell() defined as
def runshell(self, parameters)
but in ... /django_informixdb/client.py it is defined as
def runshell(self)

This should be easy to fix :-)

Stephan