import { DynamicTool, DynamicToolInput } from "@langchain/core/tools";
import { BaseChain } from "../chains/base.js";
/**
 * @deprecated Wrap in a DynamicTool instead.
 * Interface for the input parameters of the ChainTool constructor.
 * Extends the DynamicToolInput interface, replacing the 'func' property
 * with a 'chain' property.
 */
export interface ChainToolInput extends Omit<DynamicToolInput, "func"> {
    chain: BaseChain;
}
/**
 * @deprecated Wrap in a DynamicTool instead.
 * Class that extends DynamicTool for creating tools that can run chains.
 * Takes an instance of a class that extends BaseChain as a parameter in
 * its constructor and uses it to run the chain when its 'func' method is
 * called.
 */
export declare class ChainTool extends DynamicTool {
    static lc_name(): string;
    chain: BaseChain;
    constructor({ chain, ...rest }: ChainToolInput);
}