/**
 * @fileoverview Base client for interacting with the DeepSource API
 * This module provides a base client class with core functionality.
 */
import { AxiosInstance } from 'axios';
import { GraphQLResponse } from '../types/graphql-responses.js';
/**
 * Configuration options for the DeepSource client
 * @public
 */
export interface DeepSourceClientConfig {
    /** The base URL for the API */
    baseURL?: string;
    /** Request timeout in milliseconds */
    timeout?: number;
    /** Custom headers to include in requests */
    headers?: Record<string, string>;
}
/**
 * Base client for DeepSource API with core HTTP functionality
 * @class
 * @public
 */
export declare class BaseDeepSourceClient {
    /**
     * HTTP client for making API requests to DeepSource
     * @protected
     */
    protected client: AxiosInstance;
    /**
     * Logger instance for the client
     * @protected
     */
    protected logger: import("../utils/logging/logger.js").Logger;
    /**
     * Creates a new BaseDeepSourceClient instance
     * @param apiKey - The DeepSource API key for authentication
     * @param config - Optional configuration options
     * @throws {Error} When apiKey is not provided
     * @public
     */
    constructor(apiKey: string, config?: DeepSourceClientConfig);
    /**
     * Execute a GraphQL query against the DeepSource API
     * @param query The GraphQL query to execute
     * @returns The query response data
     * @throws {ClassifiedError} When the query fails
     * @protected
     */
    protected executeGraphQL<T>(query: string): Promise<GraphQLResponse<T>>;
    /**
     * Execute a GraphQL mutation against the DeepSource API
     * @param mutation The GraphQL mutation to execute
     * @returns The mutation response data
     * @throws {ClassifiedError} When the mutation fails
     * @protected
     */
    protected executeGraphQLMutation<T>(mutation: string): Promise<T>;
}