import { Provider } from '@ethersproject/abstract-provider';
export declare class TokenMetadataFetcher {
    private providers;
    private decimalsCache;
    constructor(chainIdToProvider: {
        [chainId: number]: Provider;
    });
    /**
     * Gets the number of decimals for a token.
     * Uses a cache to avoid repeated contract calls.
     * Returns 18 for native tokens.
     *
     * @param chainId - The chain ID of the token.
     * @param token - The token address.
     * @returns The number of decimals for the token.
     */
    getTokenDecimals(chainId: number, token: string): Promise<number>;
}