import { Process } from "./Process";
import { Expression } from "./Expression";
import { ExpressionToolOutputParameter } from "./ExpressionToolOutputParameter";
/**
 * Execute an expression as a Workflow step.
 *
 */
export interface ExpressionTool extends Process {
    class: string;
    /**
     * The expression to execute.  The expression must return a JSON object which
     * matches the output parameters of the ExpressionTool.
     *
     */
    expression: string | Expression;
    /**
     * Defines the parameters representing the output of the process.  May be
     * used to generate and/or validate the output object.
     *
     */
    outputs: Array<ExpressionToolOutputParameter>;
}