import { NumberT } from "./number";
import { Undefined } from "./undefined";
/**
 * A type predicate for the primitive boolean.
 * @param value - Any value
 * @returns `true` if the value is a primitive boolean.
 */
export declare function isBoolean(value: unknown): value is boolean;
/**
 * A type predicate for the primitive string.
 * @param value - Any value
 * @returns `true` if the value is a primitive string.
 */
export declare function isString(value: unknown): value is string;
/**
 * A type predicate for the primitive Symbol.
 * @param value - Any value
 * @returns `true` if the value is a symbol.
 */
export declare function isSymbol(value: unknown): value is symbol;
/**
 * A type predicate for the Array object.
 * @param value - Any value
 * @returns `true` if the value is an array.
 */
export declare function isArray(value: unknown): value is unknown[];
/**
 * A type predicate for Object.
 * @param value - Any value
 * @returns `true` if the value is an object.
 */
export declare function isObject(value: unknown): value is object;
/**
 * A type predicate for Function.
 * @param value - Any value
 * @returns `true` if the value is a function.
 */
export declare function isFunction(value: unknown): value is CallableFunction;
/**
 * A type predicate for an object property key.
 * @param value - Any value
 * @returns `true` if the value is a string, number or symbol.
 */
export declare function isPropertyKey(value: unknown): value is PropertyKey;
/**
 * A type predicate for a primitive number or the wrapped, Liquid number type.
 * @param value - Any value
 * @returns `true` if the value is a number or `NumberT`.
 */
export declare function isNumber(value: unknown): value is number | NumberT;
/**
 * A type predicate for the number primitive.
 * @param value - Any value
 * @returns `true` if the value is a primitive number.
 */
export declare function isPrimitiveNumber(value: unknown): value is number;
/**
 * A type predicate for a primitive number that is an integer.
 * @param value - Any value
 * @returns `true` if the value is a primitive number and is an integer.
 */
export declare function isPrimitiveInteger(value: unknown): value is number;
export declare function isComparable(value: unknown): value is number | NumberT | string;
/**
 * Stringify a value following Liquid semantics.
 * @param value - Any value
 * @returns A Liquid string representation of the value.
 */
export declare function liquidStringify(value: unknown): string;
/**
 * A type predicate for the Iterable interface.
 * @param value - Any value
 * @returns `true` if the value is iterable.
 */
export declare function isIterable(value: unknown): value is Iterable<unknown>;
/**
 * A type predicate for `undefined` or Liquid's undefined wrapper.
 * @param value - Any value
 * @returns `true` if the value is `undefined` or a subclass of `Undefined`.
 */
export declare function isUndefined(value: unknown): value is Undefined;
export type LiquidArrayLike = unknown[];
/**
 * A type predicate for objects that a considered array-like in Liquid.
 * @param value - Any value
 * @returns `true` if the value is considered array-like, `false` otherwise.
 */
export declare function isLiquidArrayLike(value: unknown): value is LiquidArrayLike;
/**
 * A plain object with string indexes (not an array).
 */
export type ContextScope = {
    [index: string]: unknown;
};
/**
 * A type predicate for the `ContextScope` type.
 * @param value - Any value
 * @returns `true` if the value is a non-array object.
 */
export declare function isContextScope(value: unknown): value is ContextScope;