export declare class NodeNotFoundError extends Error {
    constructor(nodeId: string);
}
export declare enum WeightedGraphEdgeErrorType {
    ShouldProvideWeight = 0,
    ShouldNotProvideWeight = 1
}
export declare class WeightedGraphEdgeError extends Error {
    constructor(type: WeightedGraphEdgeErrorType);
}
export declare class GraphCycleError extends Error {
    constructor();
}