import { IMetadataObject } from "./MetadataObject";
import { INestedAttributeDisplayForm } from "./NestedAttributeDisplayForm";
export interface IKey {
    data: string;
    type: string;
}
export interface ISortDF {
    uri: string;
}
export declare type Sort = "pk" | "byUsedDF" | ISortDF;
export declare type Direction = "asc" | "desc";
export interface IAttributeContent {
    pk?: IKey[];
    fk?: IKey[];
    rel?: string;
    compositeAttribute?: string[];
    compositeAttributePk?: string[];
    dimension?: string;
    displayForms: INestedAttributeDisplayForm[];
    sort?: Sort;
    direction?: Direction;
    drillDownStepAttributeDF?: string;
    linkAttributeDF?: string;
    folders?: string[];
    type?: string;
    grain?: string;
}
export interface IAttribute extends IMetadataObject {
    content: IAttributeContent;
}
export interface IWrappedAttribute {
    attribute: IAttribute;
}
export declare function isAttribute(object: IMetadataObject): object is IAttribute;