import type { Path, Pattern, QuerySelect, SparqlQuery, Term, TermLiteral, TripleCollection, TripleNesting, Wildcard } from './sparql12Types.js';
export declare function langTagHasCorrectRange(literal: TermLiteral): void;
export declare function findPatternBoundedVars(iter: SparqlQuery | Pattern | TripleNesting | TripleCollection | Path | Term | Wildcard, boundedVars: Set<string>): void;
/**
 * Verify that the projected variables (select head) are allowed:
 * - no group-by on select *
 * - if group-by, selected variables need to be collected by the group-by
 * - 'select ?var as ?other', ?other cannot be in scope
 */
export declare function queryProjectionIsGood(query: Pick<QuerySelect, 'variables' | 'solutionModifiers' | 'where'>): void;