How to specify dual DNS resolver addresses?

Within my DHCPv6 server, I’ve employed option code 23 to assign an IPv6 DNS resolver address. Utilizing the syntax ‘1:2:3:4:5:6:7:8’, I’ve correctly converted the IPv6 address to a raw value.

Now, I aim to specify two addresses (two resolvers). Could you guide me on the syntax for achieving this?

Regrettably, the /ipv6 dhcp-server option remains undocumented. I happened upon the method to auto-convert a single address using single quotes, which seems functional. However, I’m uncertain about handling multiple addresses.