$ bos probe
is to find out if a payment to a specific node will succeed without actually sending the payment. This can be useful for a few reasons.$ bos probe <pubkey> --find-max
$ bos probe <pubkey> --out <pubkey of channel peer you want to spend out of> --find-max
#bos probe -h
-h
and see what the options are.bos probe 021c97a90a411ff2b10dc2a8e32de2f29d2fa49d41bfbb52bd416e460db0747d0d --out 02a974fba302ef9eb7b0c994baed4371266d2d08bb6e01bd72347a65e377567138 --find-max