/**
 * Internal helper functions for liquidity manager operations.
 */
import type { EvmReadProvider, EvmWriteProvider } from "../../types/evm.js";
/**
 * Sentinel address used by liquidity manager contracts to represent the native token.
 * @remarks This is used for "ETH" / "MATIC" style underlying tokens.
 */
export declare const NATIVE_TOKEN_ADDRESS: `0x${string}`;
/** Decimals assumed for native tokens. */
export declare const NATIVE_DECIMALS = 18;
/**
 * Resolve the default account address from an `EvmWriteProvider`.
 * @throws If the provider has no default account configured.
 * @internal
 */
export declare function ensureAccount(provider: EvmWriteProvider): `0x${string}`;
/**
 * Resolve a read provider, falling back to the write provider if it supports `readContract`.
 * @throws If neither `readProvider` nor `writeProvider` has `readContract`.
 * @internal
 */
export declare function resolveReadProvider(writeProvider: EvmWriteProvider, readProvider?: EvmReadProvider): EvmReadProvider;
/**
 * Choose which provider should be used for transaction receipt polling.
 * @throws If neither `readProvider` nor `writeProvider` has `waitForTransactionReceipt`.
 * @internal
 */
export declare function receiptProvider(writeProvider: EvmWriteProvider, readProvider?: EvmReadProvider): Required<Pick<EvmReadProvider, "waitForTransactionReceipt">>;
/**
 * Convert a value to bigint, accepting common "bigint-like" inputs.
 * @param value - bigint | number | string
 * @param label - Used in error messages for easier debugging.
 * @throws If the value cannot be converted to bigint.
 * @internal
 */
export declare function ensureBigintLike(value: unknown, label: string): bigint;
/**
 * Normalize an address-like string to `0x`-prefixed hex.
 * @remarks This does not checksum; it only normalizes hex formatting.
 * @internal
 */
export declare function normalizeAddress(value: string): `0x${string}`;
/**
 * Check whether an address represents the native token sentinel.
 * @internal
 */
export declare function isNativeToken(address: `0x${string}`): boolean;
/**
 * Remove "dust" amounts that are smaller than the given conversion rate.
 * @remarks
 * OFT contracts may truncate to shared decimals internally; callers must ensure amounts
 * align to the conversion rate to avoid on-chain comparisons failing.
 * @internal
 */
export declare function removeDust(amount: bigint, decimalConversionRate: bigint): bigint;
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