import { type MoveOperation, type ModelIndex, type BoundedAxisRange, type IColumnHeaderGroup } from '@deephaven/grid';
export declare function isColumnHeaderGroup(x: unknown): x is ColumnHeaderGroup;
export type ColumnHeaderGroupConfig = {
    name: string;
    children: string[];
    color?: string | null;
    depth: number;
    childIndexes: ModelIndex[];
    parent?: string;
};
export default class ColumnHeaderGroup implements IColumnHeaderGroup {
    static NEW_GROUP_PREFIX: string;
    name: string;
    children: string[];
    depth: number;
    parent?: string;
    color?: string;
    childIndexes: ModelIndex[];
    constructor({ name, children, color, depth, childIndexes, parent, }: ColumnHeaderGroupConfig);
    getVisibleRange: (movedItems: readonly MoveOperation[]) => BoundedAxisRange;
    setParent(parent: string | undefined): void;
    addChildren(children: string[]): void;
    removeChildren(children: string[]): void;
    get isNew(): boolean;
    /**
     * Checks if a group is valid.
     * An invalid group needs to be re-parsed with the corresponding model.
     * @returns true if the group is valid (all children have indexes)
     */
    isValid(): boolean;
}
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