import { Chain } from './chain';
export declare enum SubgraphType {
    DEX = 0
}
export declare class BaseSubgraph {
    private static readonly urlMap;
    protected static url(chain: Chain, type: SubgraphType): string | undefined;
    protected static _blockString(block?: number): string;
    protected static _query<T>(url: string, operationName: string, query: string, variables?: object): Promise<T>;
}