import type { LabelExpr } from "../index";
import { CypherASTNode } from "../CypherASTNode";
import type { CypherEnvironment } from "../Environment";
import type { NodeRef } from "../references/NodeRef";
import type { RelationshipRef } from "../references/RelationshipRef";
/** Generates a predicate to check if a node has a label or a relationship has a type
 * @see {@link https://neo4j.com/docs/cypher-manual/current/clauses/where/#filter-on-node-label | Cypher Documentation}
 * @group Expressions
 * @example
 * ```cypher
 * MATCH(this)
 * WHERE this:MyNode
 * ```
 */
export declare class HasLabel extends CypherASTNode {
    private readonly node;
    private readonly expectedLabels;
    /**
     * @internal
     */
    constructor(node: NodeRef | RelationshipRef, expectedLabels: string[] | LabelExpr);
    /** @internal */
    getCypher(env: CypherEnvironment): string;
    private generateLabelExpressionStr;
    private validateLabelsInput;
}