import { z } from 'zod';
/**
 * Validation result type
 */
export type ValidationResult = true | string;
/**
 * Validate input using a Zod schema
 */
export declare function validateWithSchema<T>(schema: z.ZodSchema<T>, data: unknown): ValidationResult;
/**
 * Common validation functions
 */
export declare const validators: {
    /**
     * Validate email format
     */
    email: (value: string) => ValidationResult;
    /**
     * Validate URL format
     */
    url: (value: string) => ValidationResult;
    /**
     * Validate non-empty string
     */
    nonEmptyString: (value: string) => ValidationResult;
    /**
     * Validate positive number
     */
    positiveNumber: (value: number) => ValidationResult;
    /**
     * Validate array with minimum length
     */
    minArrayLength: (minLength: number) => (value: unknown[]) => ValidationResult;
    /**
     * Validate object has required properties
     */
    hasProperties: (properties: string[]) => (value: Record<string, unknown>) => ValidationResult;
};
/**
 * Common Zod schemas
 */
export declare const schemas: {
    /**
     * URL schema
     */
    url: z.ZodString;
    /**
     * Email schema
     */
    email: z.ZodString;
    /**
     * Non-empty string schema
     */
    nonEmptyString: z.ZodString;
    /**
     * Positive number schema
     */
    positiveNumber: z.ZodNumber;
    /**
     * Port number schema
     */
    port: z.ZodNumber;
    /**
     * Timeout schema (in milliseconds)
     */
    timeout: z.ZodNumber;
    /**
     * Retry count schema
     */
    retryCount: z.ZodNumber;
};
/**
 * Validate input function (for backward compatibility)
 */
export declare function validateInput(input: unknown, validator?: (input: unknown) => ValidationResult): ValidationResult;
/**
 * Validate output function (for backward compatibility)
 */
export declare function validateOutput(output: unknown, validator?: (output: unknown) => ValidationResult): ValidationResult;
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