/**
 * CaptureKeyframePill — top-center "Keyframes: N/M" diagnostic pill.
 *
 * Renders while a capture is in flight AND the engine is running
 * the pose-driven / flow-driven keyframe gate (keyframeMax > 0).
 * Hidden when the gate is disabled (time-based frame selection) or
 * when no capture is active.
 *
 * Color-coded by closeness to the cap:
 *
 *   - green  N < M − 1   (plenty of budget remaining)
 *   - amber  N ≥ M − 1   (last frame, or cap already hit — next
 *                        accept will be rejected)
 *
 * Layer-2 hosts that compose their own capture UI can mount this
 * pill directly; Layer-1 `<Camera>` mounts it automatically when
 * `settings.debug = true`.
 */
import React from 'react';
import type { IncrementalState } from '../stitching/incremental';
export interface CaptureKeyframePillProps {
    /** Latest engine state.  Null = capture not running. */
    state: IncrementalState | null;
    /** Top inset for safe-area placement.  Pill pinned `topInset + 56`. */
    topInset?: number;
}
export declare function CaptureKeyframePill({ state, topInset, }: CaptureKeyframePillProps): React.JSX.Element | null;
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