/**
 * Runtime validation for `TimelineConfig` + per-track src/data exclusivity.
 *
 * Enforced at container render time plus re-usable by the JSX path. Errors
 * name the offending track so bad configs surface before any lane mounts.
 */
import type { TrackRow, TimelineConfig } from './types/config';
/**
 * Assert that a set of lane-like props carries exactly one of src / data.
 *
 * `context` is embedded in the error message (track id, view name, etc.)
 * so the thrown error is actionable without reading the caller.
 */
export declare function assertSrcOrData(props: {
    src?: unknown;
    data?: unknown;
}, context: string): void;
/**
 * Validate a single `TrackRow`. Throws on the first issue. Safe to call
 * during config hydration — the error message names the offending track
 * so broken configs surface before any component mounts.
 */
export declare function validateTrackRow(track: TrackRow): void;
/**
 * Validate a whole timeline config: container, every track, duplicate ids,
 * duplicate paths, and group overrides that don't match any prefix.
 * Returns silently on success; throws on the first structural issue.
 */
export declare function validateTimelineConfig(config: TimelineConfig): void;
export declare const validateTrackConfig: typeof validateTrackRow;
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