pub(all) struct PackInfo {
  name : String
  summary : String
  jobs : Int
  templates : Array[String]
  presets : Array[String]
  themes : Array[String]
} derive(Eq, ToJson, 
@moonbitlang/core/debug.Debug
Debug)

fn list_packs() -> Array[PackInfo]

fn pack_names() -> Array[String]

fn resolve_pack(name : String) -> 
@dgmxjj/moonbit-posterkit/catalog.CampaignPack
CampaignPack?

fn resolve_pack_info(name : String) -> PackInfo?