/**
 * On-chain Pyth Price Reader
 *
 * Reads price data directly from Pyth's on-chain price feed accounts.
 * This is used to ensure the price we calculate outcomes from matches
 * the price that will be verified on-chain in mark_extreme.
 *
 * @see https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/solana/pyth_solana_receiver_sdk/src/price_update.rs
 */
import { Connection, PublicKey } from "@solana/web3.js";
import { PythPrice } from "./types.js";
/**
 * Read and parse a Pyth PriceUpdateV2 account
 *
 * @param connection - Solana connection
 * @param priceAccount - Price feed account pubkey
 * @returns Parsed price data or null if account doesn't exist
 */
export declare function readPythPriceAccount(connection: Connection, priceAccount?: PublicKey): Promise<PythPrice | null>;
/**
 * Check if the on-chain price supports a given outcome
 *
 * @param priceInCents - Price in cents
 * @param strikes - Strike prices in cents [s0, s1, s2]
 * @param isHighPool - true for High pool, false for Low pool
 * @param outcome - The outcome to check (1, 2, or 3)
 * @returns true if the current price supports this outcome
 */
export declare function priceSupportsOutcome(priceInCents: number, strikes: [number, number, number], isHighPool: boolean, outcome: number): boolean;
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