/**
 * @license
 * Copyright 2024 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { Edge as EdgeDescriptor, EdgeMetadata, GraphIdentifier, InspectableEdge, InspectablePort, MutableGraph, ValidateResult } from "@breadboard-ai/types";
import { InspectableEdgeType } from "@breadboard-ai/types";
export { Edge };
/**
 * This helper is necessary because both "*" and "" are valid representations
 * of a wildcard edge tail. This function ensures that the edge is always
 * consistent.
 * @param edge -- the edge to fix up
 * @returns
 */
export declare const fixUpStarEdge: (edge: EdgeDescriptor) => EdgeDescriptor;
/**
 * This is inverse of the helper above, necessary when working with
 * instances of `InspectableEdge` directly, since they will show "*" on both
 * sides of the edge.
 * @param edge -- the edge to un-fix up
 * @returns
 */
export declare const unfixUpStarEdge: (edge: EdgeDescriptor) => EdgeDescriptor;
export declare const fixupConstantEdge: (edge: EdgeDescriptor) => EdgeDescriptor;
declare class Edge implements InspectableEdge {
    #private;
    constructor(mutable: MutableGraph, edge: EdgeDescriptor, graphId: GraphIdentifier);
    raw(): EdgeDescriptor;
    get from(): import("@breadboard-ai/types").InspectableNode;
    get out(): string;
    get to(): import("@breadboard-ai/types").InspectableNode;
    get in(): string;
    get type(): InspectableEdgeType;
    metadata(): EdgeMetadata | undefined;
    outPort(): Promise<InspectablePort>;
    inPort(): Promise<InspectablePort>;
    validate(): Promise<ValidateResult>;
    setDeleted(): void;
    deleted(): boolean;
}
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