/**
 * Moderates tool output using the Guard API to detect prompt injection attacks
 * @param output - The tool output to moderate
 * @param apiKey - The API key for the Guard API
 * @param enableGuardApi - Whether the Guard API is enabled
 * @returns The original output or a blocked response if harmful content is detected
 */
export declare function moderateToolOutput(output: any, apiKey?: string, enableGuardApi?: boolean): Promise<any>;
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