New features
- Implementation of graphql-ws protocol (#242)
- Add upload_files functionality for requests transport (#244)
- AIOHTTPTransport ignore backend mimetype (#248)
- Add the option to specify a filename on multipart file upload (#241)
- DSL implementation of fragments (#235)
- RequestsHTTPTransport add extra_args argument to execute function (#232)
- Update typing hints of timeouts to allow passing floats (#234)
- PhoenixChannelWebsocketsTransport: Handle Absinthe unsubscriptions (#228)