/**
 * Discrete failure modes returned by the SDKChat HTTP API.
 *
 * Defined HERE (not in types.ts) so the cycle types.ts↔errors.ts disappears.
 * Public API surface unchanged — `index.ts` and `types.ts` both re-export
 * this name so consumers' `import { SDKChatErrorCode } from '@oxpulse/chat-sdk'`
 * keeps resolving.
 */
export type SDKChatErrorCode = 'network' | 'unauthorized' | 'forbidden' | 'not_found' | 'rate_limited' | 'server_error' | 'unsupported' | 'invalid_args'
/** Phase 2 SEC-CR-1694: server emitted crypto_mode does not match client's configured expectation. */
 | 'crypto_mode_mismatch'
/** Phase 2 SEC-CR-1695-02: client was poisoned by a prior crypto_mode_mismatch; recreate the instance. */
 | 'crypto_mode_poisoned'
/** Phase 2 code-quality: sendText called before crypto_mode was discovered and e2ee is configured. */
 | 'crypto_mode_undiscovered';
/**
 * Typed error thrown by SDKChatClient for all API failures.
 */
export declare class SDKChatError extends Error {
    readonly code: SDKChatErrorCode;
    readonly statusCode?: number;
    constructor(code: SDKChatErrorCode, message: string, statusCode?: number);
}
/**
 * Thrown by `batchAddMembers` when a chunk fails mid-stream.
 *
 * Carries the partial-success aggregate from all chunks that completed
 * before the failure, so the caller can compute the residual and retry.
 *
 * @example
 * ```ts
 * try {
 *   const result = await client.batchAddMembers(roomId, userIds);
 * } catch (e) {
 *   if (e instanceof SDKChatBatchError) {
 *     console.log('partial:', e.partial);
 *     // retry e.failedChunk + e.remaining
 *     const toRetry = [...e.failedChunk, ...e.remaining];
 *   }
 * }
 * ```
 */
export declare class SDKChatBatchError extends SDKChatError {
    /** Aggregated successes from chunks completed before failure */
    readonly partial: {
        added: string[];
        updated: string[];
    };
    /** Index into the user_ids array of the first user in the failed chunk */
    readonly failedAtIndex: number;
    /** user_ids in the failed chunk (i.e. the ones whose state is unknown) */
    readonly failedChunk: string[];
    /** user_ids not yet attempted (chunks after the failed one) */
    readonly remaining: string[];
    /** original underlying cause */
    readonly cause: Error | unknown;
    constructor(code: SDKChatErrorCode, message: string, opts: {
        partial: {
            added: string[];
            updated: string[];
        };
        failedAtIndex: number;
        failedChunk: string[];
        remaining: string[];
        cause: Error | unknown;
    }, statusCode?: number);
}
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