import { InterfaceTypeOptions } from '@nestjs/graphql';
import { Decorator } from './types';
export type VariantOptions = Omit<InterfaceTypeOptions, 'resolveType'> & {
    /**
     * The name of the column to use as the sum type discriminator
     */
    tagColumn?: string;
    tagColumnAlias?: string;
};
/**
 * Marks an object type as a variant for modeling sum types
 *
 * @extends InterfaceType
 * @extends TableExtension
 *
 * @param options Standard nestjs object type options plus a required `tagColumn` used as the sum type discriminator
 */
export declare function Variant(options?: VariantOptions): Decorator;
/**
 * Marks an object type as a variant for modeling sum types, implies `Table`
 *
 * @extends InterfaceType
 * @extends TableExtension
 *
 * @param name The name of the table which backs this object type useful when the object typename and table do not match
 * @param options Standard nestjs object type options plus a required `tagColumn` used as the sum type discriminator
 */
export declare function Variant(name: string, options?: VariantOptions): Decorator;