export interface JestExpectReturn {
    message: any;
    pass: boolean;
}
export interface JestExpecterResult extends Function {
    (received: any, ...actual: any[]): JestExpectReturn;
}
export interface JestExpectFactory extends Function {
    (predicate: Predicate, key: string, passMsg: Msg, failMsg: Msg): JestExpecterResult;
}
export interface ExoticJestExpecterMap {
    toBeSpecies: Predicate;
    toBeArguments: Predicate;
    toBePairs: Predicate;
    toBeArray: Predicate;
    toBeNonEmptyArray: Predicate;
    toBeObjTag: Predicate;
    toBeNonEmptyObj: Predicate;
    toBeObjTypeof: Predicate;
    toBeObjPure: Predicate;
    toBeObjPlain: Predicate;
    toBeObjNotNull: Predicate;
    toBeAsync: Predicate;
    toBePromise: Predicate;
    toBeBoolean: Predicate;
    toBeDate: Predicate;
    toBeError: Predicate;
    toBeEmpty: Predicate;
    toBeFunction: Predicate;
    toBeGenerator: Predicate;
    toBeInfinite: Predicate;
    toBeExtensible: Predicate;
    toBePrimitive: Predicate;
    toBeEnumerable: Predicate;
    toBeNaN: Predicate;
    toBeNumber: Predicate;
    toBeReal: Predicate;
    toBeSymbol: Predicate;
    toBeZero: Predicate;
    toBeFalse: Predicate;
    toBeTrue: Predicate;
    toBeRegExp: Predicate;
    toBeString: Predicate;
    toBeObj: Predicate;
    toBeFlattenable: Predicate;
    toBeFloat: Predicate;
    toBeTypedArray: Predicate;
    toBeWeakSet: Predicate;
    toBeWeakMap: Predicate;
    toBeSet: Predicate;
    toBeMap: Predicate;
    toBeCollection: Predicate;
    toBeSize: Predicate;
    toBeFrozen: Predicate;
    toBeSealed: Predicate;
    toBeUndefined: Predicate;
    toBeUndefinedLike: Predicate;
    toBeURL: Predicate;
    toBeValidArrayIndex: Predicate;
    toBeSafe: Predicate;
    toBeNotEmpty: Predicate;
    toBeAction: Predicate;
    toBeComputed: Predicate;
    toBeBoxedObservable: Predicate;
    toBeObservable: Predicate;
    toBeObservableArray: Predicate;
    toBeObservableObject: Predicate;
    toBeObservableMap: Predicate;
    toBeStringOrNumber: Predicate;
    [key: string]: Predicate;
}
export interface ExoticJestExpect {
    toBeSpecies: JestExpecterResult;
    toBeArguments: JestExpecterResult;
    toBePairs: JestExpecterResult;
    toBeArray: JestExpecterResult;
    toBeNonEmptyArray: JestExpecterResult;
    toBeObjTag: JestExpecterResult;
    toBeNonEmptyObj: JestExpecterResult;
    toBeObjTypeof: JestExpecterResult;
    toBeObjPure: JestExpecterResult;
    toBeObjPlain: JestExpecterResult;
    toBeObjNotNull: JestExpecterResult;
    toBeAsync: JestExpecterResult;
    toBePromise: JestExpecterResult;
    toBeBoolean: JestExpecterResult;
    toBeDate: JestExpecterResult;
    toBeError: JestExpecterResult;
    toBeEmpty: JestExpecterResult;
    toBeFunction: JestExpecterResult;
    toBeGenerator: JestExpecterResult;
    toBeInfinite: JestExpecterResult;
    toBeExtensible: JestExpecterResult;
    toBePrimitive: JestExpecterResult;
    toBeEnumerable: JestExpecterResult;
    toBeInstanceOf: JestExpecterResult;
    toBeNaN: JestExpecterResult;
    toBeNull: JestExpecterResult;
    toBeNil: JestExpecterResult;
    toBeNumber: JestExpecterResult;
    toBeReal: JestExpecterResult;
    toBeSymbol: JestExpecterResult;
    toBeZero: JestExpecterResult;
    toBeFalse: JestExpecterResult;
    toBeTrue: JestExpecterResult;
    toBeRegExp: JestExpecterResult;
    toBeString: JestExpecterResult;
    toBeObj: JestExpecterResult;
    toBeFlattenable: JestExpecterResult;
    toBeFloat: JestExpecterResult;
    toBeTypedArray: JestExpecterResult;
    toBeWeakSet: JestExpecterResult;
    toBeWeakMap: JestExpecterResult;
    toBeSet: JestExpecterResult;
    toBeMap: JestExpecterResult;
    toBeCollection: JestExpecterResult;
    toBeSize: JestExpecterResult;
    toBeFrozen: JestExpecterResult;
    toBeSealed: JestExpecterResult;
    toBeUndefined: JestExpecterResult;
    toBeUndefinedLike: JestExpecterResult;
    toBeURL: JestExpecterResult;
    toBeValidArrayIndex: JestExpecterResult;
    toBeSafe: JestExpecterResult;
    toBeNotEmpty: JestExpecterResult;
    toBeAction: JestExpecterResult;
    toBeComputed: JestExpecterResult;
    toBeBoxedObservable: JestExpecterResult;
    toBeObservable: JestExpecterResult;
    toBeObservableArray: JestExpecterResult;
    toBeObservableObject: JestExpecterResult;
    toBeObservableMap: JestExpecterResult;
    toBeStringOrNumber: JestExpecterResult;
    [key: string]: JestExpecterResult;
}
export interface Predicate<Expected = any, Received = any> extends Function {
    (received: Received, expected: Expected): boolean;
}
export interface PassFailArgs<Received = any, Actual = any> {
    key: string;
    received: Received;
    actual: Actual;
}
export interface MsgFunction {
    (args: PassFailArgs): string;
}
export declare type Msg = string | MsgFunction | undefined;