Error: unexpected keyword argument 'allow_subscriptions'

[EhiSonoMaestro]

Hi! Initially thanks for this that lets handle subscriptions in graphene! I tried to write my first subscription reading the README file, and and set up the required pieces, but when I execute the subscription this error raise: TypeError: graphql_sync() got an unexpected keyword argument 'allow_subscriptions'

What can I do to fix it?

[eslamelhadedy]

same problem any solutions?