import { ArrayTypedSchema } from '../core/ArrayTypedSchema';
import { ObjectPropertiesSchema } from '../types/SchemaMap';
export declare class ArraySchema<Input extends any[] = any[], Final = any, S extends ObjectPropertiesSchema<Input[number], Final> = ObjectPropertiesSchema<Input[number], Final>> extends ArrayTypedSchema<Input, Final, S> {
    protected message: string;
    protected rule: (value: any[]) => boolean;
    protected clone(): ArraySchema<Input, Final, S>;
    /**
     * Checks if is empty
     * @param message @option Overrides default message
     */
    empty(message?: string): ObjectPropertiesSchema<Input, this["final"]>;
    /**
     * Checks if has a minimal number of items in array
     * @param minValue
     * @param message @option Overrides default message
     */
    min(minValue: number, message?: string): ObjectPropertiesSchema<Input, this["final"]>;
    /**
     * Checks if has a maximal number of elements
     * @param maxValue
     * @param message @option Overrides default message
     */
    max(maxValue: number, message?: string): ObjectPropertiesSchema<Input, this["final"]>;
    /**
     * Checks if array has "length" number of elements
     * @param length
     * @param message @option Overrides default message
     */
    length(length: number, message?: string): ObjectPropertiesSchema<Input, this["final"]>;
    /**
     * Checks if has only unique elements
     *
     * Note: This only check basic values, like numbers, string, boolean.
     * For object arrays and more complex values use {@link ArraySchema#uniqueBy}
     * @param message @option Overrides default message
     */
    unique(message?: string): ObjectPropertiesSchema<Input, this["final"]>;
    /**
     * Checks if has only unique elements by key
     * @param message @option Overrides default message
     */
    uniqueBy(key: keyof Input[number] | ((val: Input[number]) => any), message?: string): ObjectPropertiesSchema<Input, this["final"]>;
}
export declare const array: <Input extends any[] = any[], Final = any, S extends ObjectPropertiesSchema<Input[number], Final> = ObjectPropertiesSchema<Input[number], Final>>(schemas: S, message?: string) => ArraySchema<Array<S["input"]>, Final, S>;