import type { ValidationAcceptor } from 'langium';
import { ModuleDefinition, SchemaDef } from './generated/ast.js';
import type { AgentlangServices } from './agentlang-module.js';
/**
 * Register custom validation checks.
 */
export declare function registerValidationChecks(services: AgentlangServices): void;
/**
 * Implementation of custom validations.
 */
export declare class AgentlangValidator {
    checkUniqueDefs(module: ModuleDefinition, accept: ValidationAcceptor): void;
    checkUniqueAttributes(def: SchemaDef, accept: ValidationAcceptor): void;
}
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