import { Effect } from "effect";
import type { ClientNotFoundError } from "../core/errors/index.js";
import type { PublicClientServiceShape } from "../core/index.js";
import { GasPriceUnavailableError } from "../gas/errors.js";
export type GasSpeed = "slow" | "standard" | "fast" | "instant";
export type FeeEstimate = {
    confidence: number;
    estimatedBaseFee: bigint;
    gasPrice?: bigint;
    maxFeePerGas: bigint;
    maxPriorityFeePerGas: bigint;
};
export declare const supportsEip1559Impl: (publicClientService: PublicClientServiceShape, chainId: number) => Effect.Effect<boolean, GasPriceUnavailableError | ClientNotFoundError>;
export declare const getAllFeeEstimatesImpl: (publicClientService: PublicClientServiceShape, chainId: number) => Effect.Effect<Record<GasSpeed, FeeEstimate>, GasPriceUnavailableError | ClientNotFoundError>;
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