export interface DataRequest {
    readonly id: string;
    readonly path: (string | null)[];
    readonly start: number;
    readonly end: number;
    readonly rowStartIndex: number;
    readonly rowEndIndex: number;
}
export interface DataResponse {
    readonly kind: "center";
    readonly data: (DataResponseLeafItem | DataResponseBranchItem)[];
    readonly size: number;
    readonly asOfTime: number;
    readonly path: (string | null)[];
    readonly start: number;
    readonly end: number;
}
export interface DataResponseBranchItem {
    readonly kind: "branch";
    readonly id: string;
    readonly data: any;
    readonly key: string | null;
    readonly childCount: number;
}
export interface DataResponseLeafItem {
    readonly kind: "leaf";
    readonly id: string;
    readonly data: any;
}
export interface DataResponsePinned {
    readonly kind: "top" | "bottom";
    readonly data: DataResponseLeafItem[];
    readonly asOfTime: number;
}
export interface QueryFnParams<K extends unknown[]> {
    readonly queryKey: K;
    readonly requests: DataRequest[];
    readonly reqTime: number;
    readonly model: {
        readonly rowGroupExpansions: Record<string, boolean | undefined>;
    };
}