import { AccountId, Hash } from "@polkadot/types/interfaces";
import Big from "big.js";
import { EventRecord } from "@polkadot/types/interfaces/system";
import { ApiTypes, AugmentedEvent } from "@polkadot/api/types";
import type { AnyTuple } from "@polkadot/types/types";
import { ApiPromise } from "@polkadot/api";
/**
 * @param events The EventRecord array returned after sending a transaction
 * @param methodToCheck The name of the event method whose existence to check
 * @returns The id associated with the transaction. If the EventRecord array does not
 * contain required events, the function throws an error.
 */
export declare function getRequestIdsFromEvents(events: EventRecord[], eventToFind: AugmentedEvent<ApiTypes, AnyTuple>, api: ApiPromise): Hash[];
/**
 * Given a list of vaults with availabilities (e.g. collateral for issue, tokens
 * for redeem) and an amount to allocate, selects one or more vaults to fulfil
 * the request.
 * If the amount cannot be allocated by a single vault, greedily selects the vault
 * with highest available amount and tries again for the remainder. If at leaast
 * one vault can fulfil a request alone, a random one among them is selected.
 **/
export declare function allocateAmountsToVaults(vaultsWithAvailableAmounts: Map<AccountId, Big>, amountToAllocate: Big): Map<AccountId, Big>;