import type { UmbContextMinimal } from '../types.js';
export type UmbContextDiscriminator<BaseType, DiscriminatorResult extends BaseType> = (instance: BaseType) => instance is DiscriminatorResult;
/**
 * @class UmbContextToken
 * @template BaseType - A generic type of the API before decimated.
 * @template ResultType - A concrete type of the API after decimation, use this when you apply a discriminator method. Note this is optional and defaults to the BaseType.
 */
export declare class UmbContextToken<BaseType extends UmbContextMinimal = UmbContextMinimal, ResultType extends BaseType = BaseType> {
    #private;
    readonly contextAlias: string;
    protected apiAlias: string;
    /**
     * Get the type of the token
     * @public
     * @type      {T}
     * @memberOf  UmbContextToken
     * @example   `typeof MyToken.TYPE`
     * @returns   undefined
     */
    readonly TYPE: ResultType;
    /**
     * @param contextAlias   	Unique identifier for the context
     * @param apiAlias   			Unique identifier for the api
     * @param discriminator   A discriminator that will be used to discriminate the API — testing if the API lives up to a certain requirement. If the API does not meet the requirement then the consumer will not receive this API.
     */
    constructor(contextAlias: string, apiAlias?: string, discriminator?: UmbContextDiscriminator<BaseType, ResultType>);
    /**
     * Get the discriminator method for the token
     * @returns the discriminator method
     */
    getDiscriminator(): UmbContextDiscriminator<BaseType, ResultType> | undefined;
    /**
     * This method must always return the unique alias of the token since that
     * will be used to look up the token in the injector.
     * @returns the unique alias of the token
     */
    toString(): string;
}