/**
 * Values gathered from consecutive draws that share one pipeline, so they go
 * up as a single buffer and draw call. Appended in paint order, and held rather
 * than copied as they arrive, since spreading them into one array throws past
 * about 125 thousand values, which a line of seven thousand points reaches.
 */
export declare class GeometryBatch {
    private chunks;
    private total;
    push(data: ArrayLike<number>): void;
    /** Every value pushed, in one array, or null when there were none. Resets the batch. */
    flush(): Float32Array | null;
}
/**
 * The chunks in one array, or null when they hold nothing. It is uploaded
 * straight away, so a lone chunk goes up as it is.
 */
export declare function joinChunks(chunks: ArrayLike<number>[], total?: number): Float32Array | null;