import { ApiPromise } from "@polkadot/api";
import { Currency } from "@equilab/api/equilibrium";
import { FailResponse, HTTPRequestBody, SuccessResponse } from "../types/common";
export declare const getPackageJson: () => Promise<{
    version: string;
}>;
export declare const isValidRequestBody: (raw: unknown) => raw is HTTPRequestBody<unknown>;
export declare const fail: <E>(error: E) => FailResponse<E>;
export declare const success: <T>(payload: T) => SuccessResponse<T>;
export declare const DEFAULT_DECIMALS = 9;
export declare const getDecimals: (api: ApiPromise, currency: Currency) => number;
export declare const getDecimalsCoefficient: (api: ApiPromise, currency: Currency) => number;
export declare const binaryFind: <T>(arr: T[], targetCond: (el: T, i: number, arr: T[]) => boolean, truncLeftCond: (el: T, i: number, arr: T[]) => boolean) => T | undefined;