import * as pg from "pg";
import type { MessageType } from "@canvas-js/interfaces";
import type { AbstractGossipLog, GossipLogInit } from "@canvas-js/gossiplog";
import type { Canvas } from "@canvas-js/core";
import type { SqlStorage } from "@cloudflare/workers-types";
export interface PlatformTarget {
    openGossipLog: (location: {
        path: string | pg.ConnectionConfig | SqlStorage | null;
        topic: string;
    }, init: GossipLogInit<MessageType>) => Promise<AbstractGossipLog<MessageType>>;
    listen: (app: Canvas, port: number, options?: {
        signal?: AbortSignal;
    }) => Promise<void>;
    buildContract: (contract: string, extraConfig?: any) => Promise<{
        build: string;
        originalContract: string;
    }>;
    buildContractByLocation: (location: string) => Promise<{
        build: string;
        originalContract: string;
    }>;
}