code: func (c *Client) CreateMultisig(requiredSigs int, addresses []btcutil.Address) (*btcjson.CreateMultiSigResult, error) {
  	return c.CreateMultisigAsync(requiredSigs, addresses).Receive()
  }
docs: // CreateMultisig creates a multisignature address that requires the specified
  // number of signatures for the provided addresses and returns the
  // multisignature address and script needed to redeem it.