import { Provider, AbiDefinition, FunctionDescription, EventDescription, ConstructorDescription, SendObservableRequest, SendRequest, NumberLike, Tag } from '../interfaces';
import { BigNumber } from 'bignumber.js';
export declare const ethHexToBN: (x0: string) => BigNumber;
export declare const ethHexToNumber: (x0: string) => number;
export declare const caseInsensitiveCompare: (a: string, b: string) => boolean | "";
export declare function extractNonTuple(args: {}): {} | undefined;
export declare function strip0x(value: string): string;
export declare function prefix0x(value: string): string;
export declare const getFunction: (name: string, abi: AbiDefinition[]) => FunctionDescription;
export declare const isEventAbi: (abi: AbiDefinition) => abi is EventDescription;
export declare const isFunctionAbi: (abi: AbiDefinition) => abi is FunctionDescription;
export declare const isConstructorAbi: (abi: AbiDefinition) => abi is ConstructorDescription;
export declare const isString: (value: any) => value is string;
export declare const isNotString: (value: any) => boolean;
export declare function isNotNil<T>(val: T | null | undefined): val is T;
export declare const arrify: <T>(value: T | T[]) => T[];
export declare function createIdGenerator(): () => number;
export declare function send$(provider: Provider): SendObservableRequest;
export declare function send(provider: Provider): SendRequest;
export declare const bnOf: (value: NumberLike, base?: number | undefined) => BigNumber;
export declare function isBoolean(variable: any): variable is boolean;
export declare function isTag(value: string | NumberLike): value is Tag;