import { programToBlockRef } from "https://deno.land/x/deco@1.40.2/engine/schema/transform.ts";
type
() => Promise<BlockModuleRef | undefined>
_path: string,
blockKey: string,
_program: ParsedSource,
schemeableReferences?: Map<ReferenceKey, Schemeable>,
introspect?: IntrospectParams,