export interface APIKeys {
    ALCHEMY_API_KEY: string;
    PRIVATE_KEY?: string | null;
    ETHERSCAN_API_KEY?: string | null;
    ALCHEMY_NETWORK?: string | null;
    NEXT_PUBLIC_ALCHEMY_NETWORK?: string | null;
    NEXT_PUBLIC_DEFAULT_CHAIN?: string | null;
    [key: string]: string | null | undefined;
}