import type { SettingsPort } from '../ports';
/**
 * @todo Describe options.
 * @typedef SettingsPure
 *
 * @property {Option} facade @todo desc.
 * @property {Option} ariaTags Option `ariaTags`.
 * @property {Option} cellRenderer Option `cellRenderer`.
 * @property {Option} columnHeaders Option `columnHeaders`.
 * @property {Option} columnWidth Option `columnWidth`.
 * @property {Option} currentRowClassName Option `currentRowClassName`.
 * @property {Option} data Option `data`.
 * @property {Option} defaultColumnWidth Option `defaultColumnWidth`.
 * @property {Option} externalRowCalculator Option `externalRowCalculator`.
 * @property {Option} singlePassLayout Option `singlePassLayout`.
 * @property {Option} fixedColumnsStart Option `fixedColumnsStart`.
 * @property {Option} fixedRowsBottom Option `fixedRowsBottom`.
 * @property {Option} fixedRowsTop Option `fixedRowsTop`.
 * @property {Option} groups Option `groups`.
 * @property {Option} hideBorderOnMouseDownOver Option `hideBorderOnMouseDownOver`.
 * @property {Option} isRtl Option `isRtl`.
 * @property {Option} isDataViewInstance Option `isDataViewInstance`.
 * @property {Option} minSpareRows Option `minSpareRows`.
 * @property {Option} onBeforeHighlightingColumnHeader Option `onBeforeHighlightingColumnHeader`.
 * @property {Option} onBeforeHighlightingRowHeader Option `onBeforeHighlightingRowHeader`.
 * @property {Option} onBeforeRemoveCellClassNames Option `onBeforeRemoveCellClassNames`.
 * @property {Option} preventOverflow Option `preventOverflow`.
 * @property {Option} preventWheel Option `preventWheel`.
 * @property {Option} renderAllColumns Option `renderAllColumns`.
 * @property {Option} renderAllRows Option `renderAllRows`.
 * @property {Option} rowHeaders Option `rowHeaders`.
 * @property {Option} rowHeightOption `rowHeight`.
 * @property {Option} rowHeightByOverlayName Option `rowHeightByOverlayName`.
 * @property {Option} shouldRenderBottomOverlay Option `shouldRenderBottomOverlay`.
 * @property {Option} shouldRenderInlineStartOverlay Option `shouldRenderInlineStartOverlay`.
 * @property {Option} shouldRenderTopOverlay Option `shouldRenderTopOverlay`.
 * @property {Option} table Option `table`.
 * @property {Option} totalColumns Option `totalColumns`.
 * @property {Option} totalRows Option `totalRows`.
 * @property {?Option} beforeDraw Option `beforeDraw`.
 * @property {?Option} columnHeaderHeight Option `columnHeaderHeight`.
 * @property {?Option} currentColumnClassName Option `currentColumnClassName`.
 * @property {?Option} headerClassName Option `headerClassName`.
 * @property {?Option} onAfterDrawSelection Option `onAfterDrawSelection`.
 * @property {?Option} onAfterMomentumScroll Option `onAfterMomentumScroll`.
 * @property {?Option} onBeforeDrawBorders Option `onBeforeDrawBorders`.
 * @property {?Option} onBeforeTouchScroll Option `onBeforeTouchScroll`.
 * @property {?Option} onCellContextMenu Option `onCellContextMenu`.
 * @property {?Option} onCellCornerDblClick Option `onCellCornerDblClick`.
 * @property {?Option} onCellCornerMouseDown Option `onCellCornerMouseDown`.
 * @property {?Option} onSelectionHandleMouseDown Option `onSelectionHandleMouseDown`.
 * @property {?Option} onSelectionEdgeMouseDown Option `onSelectionEdgeMouseDown`.
 * @property {?Option} onCellDblClick Option `onCellDblClick`.
 * @property {?Option} onCellMouseDown Option `onCellMouseDown`.
 * @property {?Option} onCellMouseOut Option `onCellMouseOut`.
 * @property {?Option} onCellMouseOver Option `onCellMouseOver`.
 * @property {?Option} onCellMouseOverOutside Option `onCellMouseOverOutside`.
 * @property {?Option} onCellMouseUp Option `onCellMouseUp`.
 * @property {?Option} onDraw Option `onDraw`.
 * @property {?Option} onModifyGetCellCoords Option `onModifyGetCellCoords`.
 * @property {?Option} onModifyGetCoordsElement Option `onModifyGetCoordsElement`.
 * @property {?Option} onModifyGetCoords Option `onModifyGetCoords`.
 * @property {?Option} onModifyRowHeaderWidth Option `onModifyRowHeaderWidth`.
 * @property {?Option} onBeforeViewportScrollHorizontally Option `onBeforeViewportScrollHorizontally`.
 * @property {?Option} onBeforeViewportScrollVertically Option `onBeforeViewportScrollVertically`.
 * @property {?Option} onScrollHorizontally Option `onScrollHorizontally`.
 * @property {?Option} onScrollVertically Option `onScrollVertically`.
 * @property {?Option} onWindowResize Option `onWindowResize`.
 * @property {?Option} rowHeaderWidth Option `rowHeaderWidth`.
 * @property {?Option} selections Option `selections`.
 * @property {?Option} viewportColumnCalculatorOverride Option `viewportColumnCalculatorOverride`.
 * @property {?Option} viewportRowCalculatorOverride Option `viewportRowCalculatorOverride`.
 * @property {?Option} viewportColumnRenderingThreshold Option `viewportColumnRenderingThreshold`.
 * @property {?Option} viewportRowRenderingThreshold Option `viewportRowRenderingThreshold`.
 * @property {?Option} viewportColumnRenderingOffsetIsAuto Option `viewportColumnRenderingOffsetIsAuto`.
 * @property {?Option} viewportRowRenderingOffsetIsAuto Option `viewportRowRenderingOffsetIsAuto`.
 * @property {?Option} stylesHandler Option `stylesHandler`.
 */
/**
 * @template TValue.
 * @typedef { TValue | Array.<TValue> | (function(...*): TValue) } Option
 */
/**
 * Generate the default settings for a Walkontable instance.
 * Void 0 means it is required, null means it can be empty.
 *
 * The `settings` argument is the owning `Settings` instance; the default options defined as functions
 * (the overlay-render predicates and the cell renderer) read other settings back through it, so they
 * stay bound to the same instance exactly as when they lived on the class.
 *
 * @param {SettingsPort} settings The Settings instance the function-valued defaults read through.
 * @returns {SettingsPure}
 */
export declare function getDefaults(settings: SettingsPort): Record<string, unknown>;