import { ValidationContext } from './fw';
/**
 * Validates that the value is declared on the object, i.e. hasOwnProperty
 * The value can be undefined, null or any other falsy expression.
 *
 */
export declare const declared: {
    name: string;
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
};
/**
 * Validates that the value is present, i.e. the value is not undefined and not null.
 */
export declare const required: {
    name: string;
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
};
/**
 * Checks if the value is an instance of it's type.
 * If instanceOf check fails and the type is Boolean, String or Number and additional check is done
 * using the typeof operator.
 */
export declare const instanceOf: {
    name: string;
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
};
/**
 * Validates that the value is greater than or equal to the minimum.
 * Does not validate that value is a number.
 */
export declare class Min {
    private min;
    readonly name: string;
    constructor(min: number);
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
}
/**
 * Validates that the value is less than or equal to the maximum.
 * Does not validate that value is a number.
 */
export declare class Max {
    private max;
    readonly name: string;
    constructor(max: number);
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
}
/**
 * Validates that the value is between (but not equal to) the minimum and maximum.
 * Does not validate that value is a number.
 */
export declare class Between {
    private min;
    private max;
    readonly name: string;
    constructor(min: number, max: number);
    validate(ctx: ValidationContext): boolean;
    errorMessage(ctx: ValidationContext): string;
}
export declare const validators: {
    declared: {
        name: string;
        validate(ctx: ValidationContext): boolean;
        errorMessage(ctx: ValidationContext): string;
    };
    required: {
        name: string;
        validate(ctx: ValidationContext): boolean;
        errorMessage(ctx: ValidationContext): string;
    };
    instanceOf: {
        name: string;
        validate(ctx: ValidationContext): boolean;
        errorMessage(ctx: ValidationContext): string;
    };
    Min: typeof Min;
    Max: typeof Max;
    Between: typeof Between;
};