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View/edit binary Protocol Buffers messages
* Messaging service allows for p2p messaging between Impervious nodes.
* SendMessage sends a text message to another node.
* Represents a message send to a far end node
the raw message itself to be sent to the far end node
The public key of the far end lightning node running IMP
Optional satoshi amount to send along with the message, defaults to 1 sat.
Optional ID of the message that this message is replying to.
* Represents a response back from a sent message
returned message ID