import { Expression } from "../../mappings/d2sb/Expression";
import { ExpressionModel } from "../generic/ExpressionModel";
import { Serializable } from "../interfaces/Serializable";
import { EventHub } from "../helpers/EventHub";
export declare class SBDraft2ExpressionModel extends ExpressionModel implements Serializable<number | string | Expression> {
    /**
     * Evaluates expression and sets its result to result property.
     *
     * If expression throws a SyntaxError, no result is returned and the syntax error is pushed to
     * validation.errors. If expression throws any other exception, it is pushed to validation.warnings
     *
     * @param context
     * @returns {any}
     */
    evaluate(context?: {
        $job?: any;
        $self?: any;
    }): Promise<any>;
    /** Cached result of expression last time it was evaluated */
    result: any;
    /** Internal CWL representation of Expression */
    private value;
    constructor(value?: number | string | Expression, loc?: string, eventHub?: EventHub);
    /**
     * Returns CWL representation.
     */
    serialize(): number | string | Expression;
    /**
     * Sets CWL representation as internal value
     */
    deserialize(val?: number | string | Expression): void;
    /**
     * Sets value of expression.script or primitive based on type parameter.
     */
    setValue(val: number | string | Expression, type: "expression" | "string" | "number"): void;
    /**
     * Returns string representation of expression.script or primitive value.
     * @returns {string}
     */
    toString(): string;
    /**
     * Returns script value of expression.script, or undefined if not set.
     * @returns {string}
     */
    getScript(): string;
    clone(): SBDraft2ExpressionModel;
    cloneStatus(clone: SBDraft2ExpressionModel): void;
}