import type { StandardSchemaV1 } from '@standard-schema/spec';
/**
 * Runs a Standard Schema validator synchronously and returns a success or failure result.
 * Async validators are rejected immediately with an error.
 */
export declare function validateStandardSchema<GOutput>(validator: StandardSchemaV1<unknown, GOutput>, value: unknown, options: TValidateStandardSchemaOptions): TStandardSchemaValidationResult<GOutput>;
interface TValidateStandardSchemaOptions {
    envKey: string;
    description?: string;
    example?: string;
}
type TStandardSchemaValidationResult<GValue> = {
    success: true;
    value: GValue;
} | {
    success: false;
    error: string;
};
export declare function isStandardSchemaValidator<GInput, GOutput>(value: unknown): value is StandardSchemaV1<GInput, GOutput>;
export {};
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