/**
 * Browser auth utilities for @sentry/api.
 *
 * Provides a fetch wrapper that handles cookie-based session auth and
 * CSRF token injection, allowing the SDK to be used inside the Sentry
 * frontend without a Bearer token.
 */
/** Matches the standard fetch signature without Bun/Node runtime extensions. */
export type FetchFn = (input: RequestInfo | URL, init?: RequestInit) => Promise<Response>;
export type BrowserClientOptions = {
    /** Cookie name to read the CSRF token from. Defaults to 'sc' (Sentry's Django default). */
    csrfCookieName?: string;
    /** Override the CSRF token getter — useful for testing. */
    getCsrfToken?: () => string;
    /** Base URL for all requests. Defaults to '' (same-origin relative URLs). */
    baseUrl?: string;
};
/**
 * Returns a fetch wrapper that injects X-CSRFToken on state-changing requests
 * and sends session cookies via credentials: 'include'.
 *
 * Sentry's Django backend reads the CSRF token from the 'sc' cookie by default
 * (configurable via window.csrfCookieName in the frontend).
 *
 * Note: always sets credentials: 'include'; any credentials value in init is overridden.
 */
export declare function createBrowserFetch(opts?: BrowserClientOptions): FetchFn;
/**
 * Returns options to spread into any @sentry/api SDK call from a browser context.
 * Configures relative base URL and cookie+CSRF auth automatically.
 *
 * @example
 * import {client} from '@sentry/api';
 * import {createBrowserSdkConfig} from '@sentry/api/browser';
 * client.setConfig(createBrowserSdkConfig());
 */
export declare function createBrowserSdkConfig(opts?: BrowserClientOptions): {
    readonly baseUrl: string;
    readonly fetch: FetchFn;
};