import { MultiStepAgent } from '../src/multiStepAgent';
/**
 * Example of a ReAct agent that demonstrates the Thought → Action → Observation loop
 * using JSON tool calls.
 */
export declare class ReActAgent extends MultiStepAgent<string> {
    /**
     * Simple echo tool that returns the input text
     */
    echo({ text }: {
        text: string;
    }): string;
    /**
     * Simple calculator tool that evaluates a math expression
     */
    calculate({ expression }: {
        expression: string;
    }): string;
}