import type { SegmentAtom } from './SegmentAtom';
export declare const SegmentEncryptionMetadataKey = "segment-encryption";
export interface SegmentEncryptionKey {
    method: string;
    uri: string;
        iv?: Uint8Array;
    keyFormat: string;
    keyFormatVersions: string;
    keyId?: string;
}
export interface SegmentEncryptionMetadata {
    keys: SegmentEncryptionKey[];
}
export declare function isSegmentEncryptionMetadata(value: unknown): value is SegmentEncryptionMetadata;
export declare function getSegmentEncryptionMetadata(segment: SegmentAtom): SegmentEncryptionMetadata | undefined;