createmultisig

It returns a json object with the address and redeemScript.

Argument #1-nrequired

Type: number (int), Required

Description: The number of required signatures out of the n keys.

Argument #2-keys

Type: json array, Required

Description: The hex-encoded public keys.

     [
       "key",      (string) The hex-encoded public key
       ...
     ]

Argument #3-address_type

Type: string, Optional
Default="legacy"

Description: The address type to use. Options are "legacy", "p2sh-segwit", and "bech32".

Result

  {                            (json object)
    "address" : "str",         (string) The value of the new multisig address.
    "redeemScript" : "hex",    (string) The string value of the hex-encoded redemption script.
    "descriptor" : "str",      (string) The descriptor for this multisig
    "warnings" : [             (json array, optional) Any warnings resulting from the creation of this multisig
      "str",                   (string)
      ...
    ]
  }