import { Color as ColorType } from '../../types.js';
import { ContrastAlgorithm } from '../../types/index.js';
import { INodeDefinition, Node } from '../../programmatic/node.js';
import { ToInput, ToOutput } from '../../programmatic/index.js';
/**
 * Evaluates an array of colors against a background color and returns the first one that meets the contrast threshold
 */
export default class NodeDefinition extends Node {
    static title: string;
    static type: string;
    static description: string;
    inputs: ToInput<{
        colors: ColorType[];
        background: ColorType;
        algorithm: ContrastAlgorithm;
        threshold: number;
    }>;
    outputs: ToOutput<{
        color: ColorType;
        sufficient: boolean;
        contrast: number;
        index: number;
    }>;
    constructor(props: INodeDefinition);
    execute(): void | Promise<void>;
}
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