import IServiceResponse from "./IServiceResponse";
import IFilePath from "./IFilePath";
export declare type NodeType = 'node' | 'immutable-text' | 'immutable-grid' | 'mutable-text' | 'image';
export declare const ALL_NODE_TYPES: NodeType[];
export declare const ROOT_ID = "/";
export declare const ROOT_LABEL = "Root";
export default interface INode {
    nodeId: string;
    label: string;
    nodeType: NodeType;
    filePath: IFilePath;
    children: INode[];
    owner: string;
    public: boolean;
}
/**
 * Determines if a object is a valid Node.
 *
 * @param x: any type
 */
export declare function isNode(x: any): x is INode;
export declare function isNodeArray(x: any): x is INode[];
/**
 * Helper function for dealing with INodes during testing.
 *
 * @param nodeId
 * @param label
 * @param filePath
 */
export declare function createNode(nodeId: string, label: string, filePath: IFilePath, userId: string, pub: boolean): INode;
export declare function isNodeType(input: any): input is NodeType;
/**
 * Tries to create an INode from any type.
 * Returns failure service response with error message if not valid INode.
 *
 * @param node: any type
 */
export declare function tryCreateNode(node: any): IServiceResponse<INode>;