export type JsonCanvasColor = string;
export type JsonCanvasNodeSide = "top" | "right" | "bottom" | "left";
export interface JsonCanvasTextNode {
    id: string;
    type: "text";
    x: number;
    y: number;
    width: number;
    height: number;
    text: string;
    color?: JsonCanvasColor;
}
export interface JsonCanvasFileNode {
    id: string;
    type: "file";
    x: number;
    y: number;
    width: number;
    height: number;
    file: string;
    color?: JsonCanvasColor;
}
export interface JsonCanvasLinkNode {
    id: string;
    type: "link";
    x: number;
    y: number;
    width: number;
    height: number;
    url: string;
    color?: JsonCanvasColor;
}
export interface JsonCanvasGroupNode {
    id: string;
    type: "group";
    x: number;
    y: number;
    width: number;
    height: number;
    label?: string;
    color?: JsonCanvasColor;
}
export type JsonCanvasNode = JsonCanvasTextNode | JsonCanvasFileNode | JsonCanvasLinkNode | JsonCanvasGroupNode;
export interface JsonCanvasEdge {
    id: string;
    fromNode: string;
    toNode: string;
    fromSide?: JsonCanvasNodeSide;
    toSide?: JsonCanvasNodeSide;
    color?: JsonCanvasColor;
    label?: string;
}
export interface JsonCanvas {
    nodes: JsonCanvasNode[];
    edges: JsonCanvasEdge[];
}
export interface NodeGeometry {
    x: number;
    y: number;
    width: number;
    height: number;
}
export declare function textNode(id: string, geom: NodeGeometry, text: string, color?: JsonCanvasColor): JsonCanvasTextNode;
export declare function fileNode(id: string, geom: NodeGeometry, file: string, color?: JsonCanvasColor): JsonCanvasFileNode;
export declare function linkNode(id: string, geom: NodeGeometry, url: string, color?: JsonCanvasColor): JsonCanvasLinkNode;
export declare function groupNode(id: string, geom: NodeGeometry, label?: string, color?: JsonCanvasColor): JsonCanvasGroupNode;
export interface EdgeOptions {
    fromSide?: JsonCanvasNodeSide;
    toSide?: JsonCanvasNodeSide;
    color?: JsonCanvasColor;
    label?: string;
}
export declare function edge(id: string, fromNode: string, toNode: string, opts?: EdgeOptions): JsonCanvasEdge;
export declare function serializeCanvas(canvas: JsonCanvas): string;
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