* commit '577f46036':
make FederationClient._do_send_invite async
Apply suggestions from code review
make FederationClient.send_invite async
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make FederationClient.get_missing_events async
make FederationClient._do_send_leave async
make FederationClient.send_leave.send_request async
make FederationClient._do_send_join async
make FederationClient.send_join.send_request async
make FederationClient.make_membership_event.send_request async
make FederationClient._try_destination_list async
make FederationClient.send_leave async
make FederationClient.send_join async
make FederationClient.make_membership_event async
make FederationClient.get_event_auth async
make FederationClient.get_room_state_ids async
make FederationClient.get_pdu async
make FederationClient.backfill async