declare namespace Ext {
    export namespace grid {
        export namespace selection {
            export interface SpreadsheetModelConfig {
                allowDeselect?: boolean;
                cellSelect?: boolean;
                checkboxColumnIndex?: number | string;
                checkboxHeaderWidth?: number | string;
                checkboxSelect?: boolean;
                checkColumnHeaderText?: string;
                columnSelect?: boolean;
                dragSelect?: boolean;
                extensible?: string;
                ignoreRightMouseSelection?: boolean;
                listeners?: object;
                mode?: "SINGLE" | "SIMPLE" | "MULTI";
                pruneRemoved?: boolean;
                rowNumbererHeaderWidth?: number | string;
                rowSelect?: boolean;
                selected?: Ext.grid.selection.Selection;
                showHeaderCheckbox?: boolean;
                toggleOnClick?: boolean;
            }

            export class SpreadsheetModel extends Ext.selection.Model  {
                public deselectColumn(column?: Ext.grid.column.Column, suppressEvent?: boolean): void;
                public getCellSelect(): void;
                public getCheckboxHeaderConfig(): void;
                public getColumnSelect(): void;
                public getDragSelect(): void;
                public getExtensible(): void;
                public getRowSelect(): void;
                public getSelected(): void;
                public selectCells(rangeStart?: Ext.grid.CellContext | number[], rangeEnd?: Ext.grid.CellContext | number[], suppressEvent?: boolean): void;
                public selectColumn(column?: Ext.grid.column.Column, keepSelection?: boolean, suppressEvent?: boolean): void;
                public selectRows(rows?: Ext.data.Model[], keepSelection?: boolean, suppressEvent?: boolean): void;
                public setCellSelect(): void;
                public setColumnSelect(): void;
                public setDragSelect(): void;
                public setExtensible(): void;
                public setRowSelect(): void;
                public setSelected(): void;
            }
        }
    }
}