export declare abstract class TeamRetroService {
    /**
     * Get authentication headers based on the auth type
     * @returns Authentication headers
     * @throws ErrorMCP on invalid auth type or missing credentials
     */
    protected getAuthHeaders(): Record<string, string>;
    /**
     * Base HTTP GET request handler
     * @param endpoint API endpoint
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    protected get<T>(endpoint: string, options?: RequestInit): Promise<T>;
    /**
     * Base HTTP PATCH request handler
     * @param endpoint API endpoint
     * @param body Request body
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    protected patch<T>(endpoint: string, body: unknown, options?: RequestInit): Promise<T>;
    /**
     * Base HTTP POST request handler
     * @param endpoint API endpoint
     * @param body Request body
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    protected post<T>(endpoint: string, body: unknown, options?: RequestInit): Promise<T>;
    /**
     * Base HTTP DELETE request handler
     * @param endpoint API endpoint
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    protected delete<T>(endpoint: string, options?: RequestInit): Promise<T>;
    /**
     * Base HTTP PUT request handler
     * @param endpoint API endpoint
     * @param body Request body
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    protected put<T>(endpoint: string, body: unknown, options?: RequestInit): Promise<T>;
    /**
     * Base HTTP request handler
     * @param endpoint API endpoint
     * @param options Fetch options
     * @returns Parsed response data
     * @throws ErrorMCP on request failure
     */
    private request;
}