import { Effect } from "effect";
import type { PublicClientServiceShape } from "../core/index.js";
import { SubscriptionDroppedError, SubscriptionNotSupportedError } from "./errors.js";
export declare function watchPendingTransactions(publicClientService: PublicClientServiceShape, params: {
    chainId: number;
    pollingInterval?: number;
}): Effect.Effect<import("effect/Stream").Stream<`0x${string}`, SubscriptionDroppedError, never>, import("../core/index.js").ClientNotFoundError | SubscriptionNotSupportedError, never>;
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