import { RunnableBinding, RunnableConfig, RunnableToolLike } from "@langchain/core/runnables";
import { StructuredToolInterface } from "@langchain/core/tools";
/** @deprecated Use {@link ToolNode} instead. */
export interface ToolExecutorArgs {
    tools: Array<StructuredToolInterface | RunnableToolLike>;
    /**
     * @default {INVALID_TOOL_MSG_TEMPLATE}
     */
    invalidToolMsgTemplate?: string;
}
/**
 * Interface for invoking a tool
 */
export interface ToolInvocationInterface {
    tool: string;
    toolInput: string;
}
type ToolExecutorInputType = any;
type ToolExecutorOutputType = any;
/** @deprecated Use {@link ToolNode} instead. */
export declare class ToolExecutor extends RunnableBinding<ToolExecutorInputType, ToolExecutorOutputType> {
    lc_graph_name: string;
    tools: Array<StructuredToolInterface | RunnableToolLike>;
    toolMap: Record<string, StructuredToolInterface | RunnableToolLike>;
    invalidToolMsgTemplate: string;
    constructor(fields: ToolExecutorArgs);
    /**
     * Execute a tool invocation
     *
     * @param {ToolInvocationInterface} toolInvocation The tool to invoke and the input to pass to it.
     * @param {RunnableConfig | undefined} config Optional configuration to pass to the tool when invoked.
     * @returns Either the result of the tool invocation (`string` or `ToolMessage`, set by the `ToolOutput` generic) or a string error message.
     */
    _execute(toolInvocation: ToolInvocationInterface, config?: RunnableConfig): Promise<ToolExecutorOutputType>;
}
export {};