import { Concept } from "../Concept";
export interface Value extends Concept {
    /** The <code>ValueType</code> of this value concept */
    readonly valueType: Concept.ValueType;
    /** Retrieves the value which this value concept holds. */
    readonly value: boolean | string | number | Date;
    /**
     * Returns <code>True</code> if the value which this value concept holds is of type <code>boolean</code>. Otherwise, returns <code>False</code>.
     *
     * ### Examples
     *
     * ```ts
     * value.isBoolean()
     * ```
     */
    isBoolean(): boolean;
    /**
     * Returns <code>True</code> if the value which this value concept holds is of type <code>long</code>. Otherwise, returns <code>False</code>.
     *
     * ### Examples
     *
     * ```ts
     * value.isLong()
     * ```
     */
    isLong(): boolean;
    /**
     * Returns <code>True</code> if the value which this value concept holds is of type <code>double</code>.
     * Otherwise, returns <code>False</code>.
     *
     * ### Examples
     *
     * ```ts
     * value.isDouble()
     * ```
     */
    isDouble(): boolean;
    /**
     * Returns <code>True</code> if the value which this value concept holds is of type <code>string</code>. Otherwise, returns <code>False</code>.
     *
     * ### Examples
     *
     * ```ts
     * value.isString()
     * ```
     */
    isString(): boolean;
    /**
     * Returns <code>True</code> if the value which this value concept holds is of type <code>datetime</code>. Otherwise, returns <code>False</code>.
     *
     * ### Examples
     *
     * ```ts
     * value.isDatetime()
     * ```
     */
    isDateTime(): boolean;
    /**
     * Returns a <code>boolean</code> value of this value concept. If the value has another type, raises an exception.
     *
     * ### Examples
     *
     * ```ts
     * value.asBoolean()
     * ```
     */
    asBoolean(): boolean;
    /**
     * Returns a <code>number</code> value of this value concept. If the value has another type, raises an exception.
     *
     * ### Examples
     *
     * ```ts
     * value.asLong()
     * ```
     */
    asLong(): number;
    /**
     * Returns a <code>number</code> value of this value concept. If the value has another type, raises an exception.
     *
     * ### Examples
     *
     * ```ts
     * value.asDouble()
     * ```
     */
    asDouble(): number;
    /**
     * Returns a <code>string</code> value of this value concept. If the value has another type, raises an exception.
     *
     * ### Examples
     *
     * ```ts
     * value.asString()
     * ```
     */
    asString(): string;
    /**
     * Returns a <code>datetime</code> value of this value concept. If the value has another type, raises an exception.
     *
     * ### Examples
     *
     * ```ts
     * value.asDatetime()
     * ```
     */
    asDateTime(): Date;
}
export declare namespace Value {
    function proto(value: Value): import("typedb-protocol/proto/concept").Value;
}