export interface Provider<T> {
    isProvider(provider: unknown): provider is T;
    call(provider: T, contractAddress: string, data: string): Promise<string>;
}
export declare type InferProviderType<P extends readonly unknown[]> = {
    [K in keyof P]: P[K] extends P[number] ? (P[K] extends Provider<infer T> ? T : never) : never;
};
export declare type TupleToUnion<P extends readonly unknown[]> = P[number];
export declare type ProviderType<P extends readonly unknown[]> = TupleToUnion<InferProviderType<P>>;
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