import { Context, Effect, Layer, Stream } from "effect";
import { ChainHead } from "../query/chain-head.js";
import { RequestDedup, RpcCache } from "../rpc/index.js";
export type QueryOptions = {
    readonly ttl?: number | undefined;
    readonly blockScoped?: boolean | undefined;
    readonly chainId?: number | undefined;
};
export type WatchOptions = QueryOptions & {
    readonly refetchOn: Stream.Stream<unknown, never>;
};
export type QueryClientShape = {
    readonly query: <A, E, R>(key: string, effect: Effect.Effect<A, E, R>, options?: QueryOptions | undefined) => Effect.Effect<A, E, R>;
    readonly watch: <A, E, R>(key: string, effect: Effect.Effect<A, E, R>, options: WatchOptions) => Stream.Stream<A, E, R>;
};
declare const QueryClient_base: Context.TagClass<QueryClient, "ew3/QueryClient", QueryClientShape>;
export declare class QueryClient extends QueryClient_base {
}
export declare const QueryClientLive: Layer.Layer<QueryClient, never, ChainHead | RpcCache | RequestDedup>;
export {};
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