/**
 * ISO 20022 XSD validation interface.
 * Full XSD catalog validation is deferred; this hook enables server wiring and tests.
 */
export type SchemaValidationResult = {
    valid: boolean;
    errors: string[];
};
export type Iso20022SchemaValidator = {
    validate(xml: string, messageFamily: string): Promise<SchemaValidationResult>;
};
/** Structural pre-check until official XSD bundles are mounted in services. */
export declare class PassthroughSchemaValidator implements Iso20022SchemaValidator {
    validate(xml: string, messageFamily: string): Promise<SchemaValidationResult>;
}
