keypoolrefill ( newsize )
Fills the keypool.
Requires wallet passphrase to be set with walletpassphrase call if wallet is encrypted.
Arguments:
1. newsize (numeric, optional, default=100) The new keypool size
Result:
null (json null)
Examples:
> bitcoin-cli keypoolrefill
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "keypoolrefill", "params": []}' -H 'content-type: text/plain;' http://127.0.0.1:8332/