import type { Constructor, Primitive } from './types';
export declare function isDefined<A>(value: A | undefined): value is A;
export declare function isUndefined<A>(value: A | undefined): value is undefined;
export declare function isNonNull<A>(value: A | null): value is A;
export declare function isNull<A>(value: A | null): value is null;
export declare function isNonNullable<A>(value: A | null | undefined): value is A;
export declare function isNullable<A>(value: A | null | undefined): value is null | undefined;
export declare function isIterable<A>(value: any): value is Iterable<A>;
export declare function isArray<A>(value: A | Array<A> | ReadonlyArray<A>): value is Array<A>;
export declare function isArray<A>(value: any): value is Array<A>;
export declare function isObject<A extends Function>(value: A): false;
export declare function isObject(value: unknown): value is object;
export declare function isObject<A>(value: A | Primitive): value is A;
export declare function isFunction(value: any): value is Function;
export declare function isBoolean(value: any): value is boolean;
export declare function isString(value: any): value is string;
export declare function isNumber(value: any): value is number;
export declare function isSymbol(value: any): value is symbol;
export declare function isPlain(value: any): value is object;
export declare function isInstanceOf<C extends Constructor<A>, A>(type: C): (value: any) => value is A;
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