Open a channel from a sender to a recipientParaId. Although opened by governance,
the max_capacity and max_message_size are still subject to the Relay Chain's
configured limits.
Expected use is when one (and only one) of the ParaIds involved in the channel is
governed by the system, e.g. a system parachain.
Open a channel from a
senderto arecipientParaId. Although opened by governance, themax_capacityandmax_message_sizeare still subject to the Relay Chain's configured limits.Expected use is when one (and only one) of the
ParaIds involved in the channel is governed by the system, e.g. a system parachain.Origin must be the
ChannelManager.