Keypoolrefill
keypoolrefill ( newsize )
Fills the keypool.
Arguments
1. newsize (numeric, optional, default=100) The new keypool size
Examples:
> nexa-cli keypoolrefill
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "keypoolrefill", "params": [] }' -H 'content-type: text/plain;' http://127.0.0.1:7227/