Angular Data Grid: Column API

function getColumn(key: any): Column | null;

function getAllColumns(): Column[] | null;

function getAllGridColumns(): Column[];

function getColumnState(): ColumnState[];

interface ColumnState {
  // ID of the column 
  colId?: string;
  // True if the column is hidden 
  hide?: boolean | null;
  // Width of the column in pixels 
  width?: number;
  // Column's flex if flex is set 
  flex?: number | null;
  // Sort applied to the column 
  sort?: string | null;
  // The order of the sort, if sorting by many columns 
  sortIndex?: number | null;
  // The aggregation function applied 
  aggFunc?: string | IAggFunc | null;
  // True if pivot active 
  pivot?: boolean | null;
  // The order of the pivot, if pivoting by many columns 
  pivotIndex?: number | null;
  // Set if column is pinned 
  pinned?: boolean | string | 'left' | 'right' | null;
  // True if row group active 
  rowGroup?: boolean | null;
  // The order of the row group, if grouping by many columns 
  rowGroupIndex?: number | null;
}

function applyColumnState(
    params: ApplyColumnStateParams
): boolean;

interface ApplyColumnStateParams {
  // The state from `getColumnState` 
  state?: ColumnState[];
  // Whether column order should be applied 
  applyOrder?: boolean;
  // State to apply to columns where state is missing for those columns 
  defaultState?: ColumnState;
}

function resetColumnState(): void;

function getColumnGroupState(): {groupId: string, open: boolean}[];

function setColumnGroupState(
    stateItems: ({ groupId: string; open: boolean; })[]
): void;

function resetColumnGroupState(): void;

function getColumnGroup(
    name: string,
    instanceId: number
): ColumnGroup | null;

function setColumnGroupOpened(
    group: OriginalColumnGroup | string,
    newValue: boolean
): void;

function setColumnWidth(
    key: string | Column,
    newWidth: number,
    finished: boolean = true,
    source: ColumnEventType
): void;

type ColumnEventType = 
      "sizeColumnsToFit" 
    | "autosizeColumns" 
    | "alignedGridChanged" 
    | "filterChanged" 
    | "filterDestroyed" 
    | "gridOptionsChanged" 
    | "gridInitializing" 
    | "toolPanelDragAndDrop" 
    | "toolPanelUi" 
    | "uiColumnMoved" 
    | "uiColumnResized" 
    | "uiColumnDragged" 
    | "uiColumnExpanded" 
    | "uiColumnSorted" 
    | "contextMenu" 
    | "columnMenu" 
    | "rowModelUpdated" 
    | "api" 
    | "flex" 
    | "pivotChart"

function setColumnWidths(
    columnWidths: { key: string | Column; newWidth: number; }[],
    finished: boolean = true,
    source: ColumnEventType
): void;

type ColumnEventType = 
      "sizeColumnsToFit" 
    | "autosizeColumns" 
    | "alignedGridChanged" 
    | "filterChanged" 
    | "filterDestroyed" 
    | "gridOptionsChanged" 
    | "gridInitializing" 
    | "toolPanelDragAndDrop" 
    | "toolPanelUi" 
    | "uiColumnMoved" 
    | "uiColumnResized" 
    | "uiColumnDragged" 
    | "uiColumnExpanded" 
    | "uiColumnSorted" 
    | "contextMenu" 
    | "columnMenu" 
    | "rowModelUpdated" 
    | "api" 
    | "flex" 
    | "pivotChart"

function sizeColumnsToFit(gridWidth: number): void;

function autoSizeColumn(
    key: string | Column,
    skipHeader: boolean
): void;

function autoSizeColumns(
    keys: (string | Column)[],
    skipHeader: boolean
): void;

function autoSizeAllColumns(skipHeader: boolean): void;

function moveColumn(
    key: string | Column,
    toIndex: number
): void;

function moveColumns(
    columnsToMoveKeys: (string | Column)[],
    toIndex: number
): void;

function moveColumnByIndex(
    fromIndex: number,
    toIndex: number
): void;

function isPinning(): boolean;

function isPinningLeft(): boolean;

function isPinningRight(): boolean;

function setColumnPinned(
    key: string | Column,
    pinned: string
): void;

function setColumnsPinned(
    keys: (string | Column)[],
    pinned: string
): void;

function setColumnVisible(
    key: string | Column,
    visible: boolean
): void;

function setColumnsVisible(
    keys: (string | Column)[],
    visible: boolean
): void;

function getDisplayNameForColumn(
    column: Column,
    location: string | null
): string;

function getDisplayNameForColumnGroup(
    columnGroup: ColumnGroup,
    location: string
): string;

function getDisplayedColAfter(col: Column): Column | null;

function getDisplayedColBefore(col: Column): Column | null;

function getAllDisplayedVirtualColumns(): Column[];

function getRowGroupColumns(): Column[];

function setRowGroupColumns(
    colKeys: (string | Column)[]
): void;

function addRowGroupColumn(
    colKey: string | Column
): void;

function addRowGroupColumns(
    colKeys: (string | Column)[]
): void;

function removeRowGroupColumn(
    colKey: string | Column
): void;

function removeRowGroupColumns(
    colKeys: (string | Column)[]
): void;

function moveRowGroupColumn(
    fromIndex: number,
    toIndex: number
): void;

function isPivotMode(): boolean;

function setPivotMode(pivotMode: boolean): void;

function getPivotColumns(): Column[];

function setPivotColumns(
    colKeys: (string | Column)[]
): void;

function addPivotColumn(
    colKey: string | Column
): void;

function addPivotColumns(
    colKeys: (string | Column)[]
): void;

function removePivotColumn(
    colKey: string | Column
): void;

function removePivotColumns(
    colKeys: (string | Column)[]
): void;

function getSecondaryPivotColumn(
    pivotKeys: string[],
    valueColKey: string | Column
): Column | null;

function getPrimaryColumns(): Column[] | null;

function getSecondaryColumns(): Column[] | null;