export declare const GRAPHQL_SORTING_DECORATOR_METADATA_KEY = "GraphqlSortingDecorator";
export declare const SORTING_DECORATOR_OPTIONS_METADATA_KEY = "SortingPropertyDecoratorOptions";
export declare const SORTING_DECORATOR_INDEX_METADATA_KEY = "SortingPropertyDecoratorIndex";
export declare const SORTING_DECORATOR_CUSTOM_FIELDS_METADATA_KEY = "SortingCustomFieldsDecoratorOptions";
export declare const SORTING_OPERATION_PREFIX: string;