import { ValidationAcceptor } from "langium";
import { StructExpression, StructTypeDefinition } from "../../language/generated/ast.js";
declare const _default: () => (readonly ["StructExpression" | "StructTypeDefinition", typeof NoRepeatedKeys])[];
export default _default;
declare function NoRepeatedKeys(): (node: StructExpression | StructTypeDefinition, accept: ValidationAcceptor) => void;