import { LinkMerge } from "../elements/link-merge";
import { ValidationBase } from "../helpers/validation/ValidationBase";
import { Serializable } from "../interfaces/Serializable";
import { ExpressionModel } from "./ExpressionModel";
import { ParameterTypeModel } from "./ParameterTypeModel";
import { Plottable } from "./Plottable";
import { StepModel } from "./StepModel";
export declare class WorkflowStepInputModel extends ValidationBase implements Serializable<any>, Plottable {
    id: string;
    'default': any;
    valueFrom: ExpressionModel;
    source: string[];
    linkMerge: LinkMerge;
    label: string;
    description: string;
    type: ParameterTypeModel;
    fileTypes: string[];
    secondaryFiles: ExpressionModel[];
    constructor(loc?: string);
    parentStep: StepModel;
    /**
     * The connectionId used within the graph, prefix with "in/" because it refers to the
     */
    readonly connectionId: string;
    /**
     * The input's ID for scatter
     * @returns {string}
     */
    readonly destinationId: string;
    readonly status: "port" | "default" | "exposed";
    isVisible: boolean;
    customProps: any;
    serialize(): any;
    deserialize(attr: any): void;
}