import { type DefinitionNode, type GraphQLSchema } from "graphql";
export declare class ComplexityEstimatorHelper {
    private objectTypeNameToFieldNamesMapForComplexityExtensions;
    private useComplexityEstimators;
    constructor(useComplexityEstimators: boolean);
    registerField(parentObjectTypeNameOrInterfaceTypeName: string, fieldName: string): void;
    hydrateDefinitionNodeWithComplexityExtensions(definition: DefinitionNode): DefinitionNode;
    hydrateSchemaFromSDLWithASTNodeExtensions(schema: GraphQLSchema): void;
    private getFieldsForParentTypeName;
}
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