import { GraphQLResult } from '@aws-amplify/api-graphql';
import { DocumentNode } from 'graphql';
import Observable from 'zen-observable';
import { GraphQLClient, GraphQLClientOptions } from './graphqlClient';
/**
 * Convenience wrapper for GraphQL API using Amplify SDK.
 */
export declare class AmplifyClient implements GraphQLClient {
    private readonly options;
    private client;
    private readonly amplify;
    constructor(options: GraphQLClientOptions);
    private configure;
    /**
     * Performs GraphQL query operation.
     *
     * @param options query document, query variables and authentication
     * token (optional). If authentication token is provided then the
     * token provided via the constructor will be ignored.
     * @returns query result.
     */
    query<T>(options: {
        query: string | DocumentNode;
        variables?: any;
        authToken?: string;
    }): Promise<GraphQLResult<T>>;
    private queryInternal;
    /**
     * Performs GraphQL mutation operation.
     *
     * @param options mutation document, mutation variables and authentication
     * token (optional). If authentication token is provided then the
     * token provided via the constructor will be ignored.
     * @returns mutation result.
     */
    mutate<T>(options: {
        mutation: string | DocumentNode;
        variables?: any;
        authToken?: string;
    }): Promise<GraphQLResult<T>>;
    private mutateInternal;
    /**
     * Performs GraphQL subscription operation.
     *
     * @param options subscription document, subscription variables and
     * authentication token (optional). If authentication token is provided
     * then the token provided via the constructor will be ignored.
     * @returns observable for receiving subscription notifications.
     */
    subscribe<T>(options: {
        subscription: string | DocumentNode;
        variables?: any;
        authToken?: string;
    }): Promise<Observable<GraphQLResult<T>>>;
    private subscribeInternal;
    /**
     * Resolves a TokenProvider into its actual token value.
     * Handles both string tokens and async/sync function providers.
     */
    private resolveToken;
    private transformAuthMode;
    private createClient;
    private resolveAuthOptions;
}