import { z } from 'zod';
/**
 * Represents additional metadata associated with
 * an audio document.
 */
export declare const AudioMetadataSchema: z.ZodObject<{
    /**
     * The duration of the audio document.
     */
    duration: z.ZodOptional<z.ZodNumber>;
    /**
     * The codec used to encode the audio document.
     */
    codec: z.ZodOptional<z.ZodString>;
    /**
     * The bitrate of the audio track.
     */
    bitrate: z.ZodOptional<z.ZodNumber>;
    /**
     * The sample rate of the audio track.
     */
    sampleRate: z.ZodOptional<z.ZodNumber>;
    /**
     * The number of channels in the audio track.
     */
    channels: z.ZodOptional<z.ZodNumber>;
    /**
     * Whether the audio track is lossless.
     */
    lossless: z.ZodOptional<z.ZodBoolean>;
    /**
     * The vector embeddings associated with the image document.
     */
    embeddings: z.ZodOptional<z.ZodObject<{
        vectors: z.ZodEffects<z.ZodString, import("../../../../pointer/index.js").Pointer<number[]>, string>;
        model: z.ZodString;
        dimensions: z.ZodNumber;
    }, "strip", z.ZodTypeAny, {
        vectors: import("../../../../pointer/index.js").Pointer<number[]>;
        model: string;
        dimensions: number;
    }, {
        vectors: string;
        model: string;
        dimensions: number;
    }>>;
    /**
     * User defined metadata associated with the audio track.
     */
    custom: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
}, "strip", z.ZodTypeAny, {
    custom?: Record<string, any> | undefined;
    duration?: number | undefined;
    embeddings?: {
        vectors: import("../../../../pointer/index.js").Pointer<number[]>;
        model: string;
        dimensions: number;
    } | undefined;
    codec?: string | undefined;
    bitrate?: number | undefined;
    sampleRate?: number | undefined;
    channels?: number | undefined;
    lossless?: boolean | undefined;
}, {
    custom?: Record<string, any> | undefined;
    duration?: number | undefined;
    embeddings?: {
        vectors: string;
        model: string;
        dimensions: number;
    } | undefined;
    codec?: string | undefined;
    bitrate?: number | undefined;
    sampleRate?: number | undefined;
    channels?: number | undefined;
    lossless?: boolean | undefined;
}>;
export type AudioMetadata = z.infer<typeof AudioMetadataSchema>;