import { NetworkIdType, TokenYield } from '@sonarwatch/portfolio-core';
export declare class TokenYieldMap extends Map<string, TokenYield> {
    readonly networkId: NetworkIdType;
    constructor(networkId: NetworkIdType, initialEntries?: [string, TokenYield][]);
    private formatKey;
    get(address: string): TokenYield | undefined;
    has(address: string): boolean;
}