s to that label.

Arguments:
1. nrequired       (numeric, required) The number of required signatures out of the n keys or addresses.
2. keys            (json array, required) A json array of bitcoin addresses or hex-encoded public keys
     [
       "key",      (string) bitcoin address or hex-encoded public key
       ...
     ]
3. label           (string, optional) A label to assign the addresses to.
4. address_type    (string, optional, default=set by -addresstype) The address type to use. Options are "l