import { DepGraph } from 'dependency-graph';
import type { DocumentNode, FieldNode, FragmentDefinitionNode, FragmentSpreadNode, InlineFragmentNode, OperationDefinitionNode, Source } from 'graphql';
import { GraphQLError } from 'graphql';
export declare function validateAliasCount({ source, doc, maxAliasCount, fragmentGraph, }: {
    source: Source;
    doc: DocumentNode;
    maxAliasCount: number;
    fragmentGraph: DepGraph<FragmentDefinitionNode>;
}): GraphQLError | void;
export declare function countAliases(node: FieldNode | FragmentDefinitionNode | InlineFragmentNode | OperationDefinitionNode | FragmentSpreadNode, getFragmentByName: (fragmentName: string) => FragmentDefinitionNode | undefined): number;