import type { ASTVisitor } from '../../language/visitor';
import type { ASTValidationContext } from '../ValidationContext';
/**
* Unique operation names
*
* A GraphQL document is only valid if all defined operations have unique names.
* See https://spec.graphql.org/draft/#sec-Operation-Name-Uniqueness
*/
export declare function UniqueOperationNamesRule(
context: ASTValidationContext,
): ASTVisitor;