import { Capability, Target } from "./ir";
export declare function target_compatible(self: Target, that: Target): boolean;
export declare function describe_target(x: Target): "node" | "*" | "web";
export declare function missing_capabilities(total: Set<Capability>, required: Set<Capability>): Set<string>;
export declare function restrict_capabilities(current: Set<Capability>, required: Set<Capability>): Set<string>;