import { type Model } from "../../db";
import { AuthHeaderValidVerificationResultIngestion } from "../auth/types";
export type TokenCountDelegate = (p: {
    model: Model;
    text: unknown;
}) => number | undefined;
/**
 * Options for event batch processing.
 * @property delay - Delay in ms to wait before processing events in the batch.
 * @property source - Source of the events for metrics tracking (e.g., "otel", "api").
 * @property isLangfuseInternal - Whether the events are being ingested by Langfuse internally (e.g. traces created for prompt experiments).
 */
type ProcessEventBatchOptions = {
    delay?: number | null;
    source?: "api" | "otel";
    isLangfuseInternal?: boolean;
};
/**
 * Processes a batch of events.
 * @param input - Batch of IngestionEventType. Will validate the types first thing and return errors if they are invalid.
 * @param authCheck - AuthHeaderValidVerificationResultIngestion
 * @param options - (Optional) Options for the event batch processing.
 */
export declare const processEventBatch: (input: unknown[], authCheck: AuthHeaderValidVerificationResultIngestion, options?: ProcessEventBatchOptions) => Promise<{
    successes: {
        id: string;
        status: number;
    }[];
    errors: {
        id: string;
        status: number;
        message?: string;
        error?: string;
    }[];
}>;
export declare const aggregateBatchResult: (errors: Array<{
    id: string;
    error: unknown;
}>, results: Array<{
    id: string;
    result: unknown;
}>, projectId?: string) => {
    successes: {
        id: string;
        status: number;
    }[];
    errors: {
        id: string;
        status: number;
        message?: string;
        error?: string;
    }[];
};
export {};
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