/**
 * @license
 * Copyright 2023 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { GraphInlineMetadata, InputValues, NodeDescriptor, NodeHandlerContext, OutputValues, RunArguments, RunState, Schema, TraversalResult } from "@breadboard-ai/types";
import { RunResult } from "./run.js";
export declare const createErrorMessage: (inputName: string | string[], metadata: GraphInlineMetadata | undefined, required: boolean) => string;
export declare const bubbleUpInputsIfNeeded: (metadata: GraphInlineMetadata, context: NodeHandlerContext, descriptor: NodeDescriptor, result: TraversalResult, path: number[], state?: RunState) => Promise<void>;
export declare const createBubbleHandler: (metadata: GraphInlineMetadata, context: NodeHandlerContext, descriptor: NodeDescriptor, state: RunState) => (propertiesSchema: Schema, path: number[]) => Promise<OutputValues>;
export type InputSchemaHandler = (schema: Schema, path: number[]) => Promise<OutputValues>;
export declare class InputSchemaReader {
    #private;
    constructor(currentOutputs: OutputValues, inputs: InputValues, path: number[]);
    read(handler: InputSchemaHandler): Promise<OutputValues>;
}
export declare class RequestedInputsManager {
    #private;
    constructor(args: RunArguments);
    createHandler(next: (result: RunResult) => Promise<void>, result: TraversalResult): NodeHandlerContext["requestInput"];
}
export declare const bubbleUpOutputsIfNeeded: (outputs: OutputValues, descriptor: NodeDescriptor, context: NodeHandlerContext, path: number[]) => Promise<boolean>;
export declare const createOutputProvider: (next: (result: RunResult) => Promise<void>, result: TraversalResult, context: NodeHandlerContext) => (outputs: OutputValues, descriptor: NodeDescriptor, path: number[]) => Promise<void>;
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