@mui/x-data-grid/esm/models/gridColumnGrouping.js

The Community plan edition of the MUI X Data Grid components.

export function isLeaf(node) {
  return node.field !== undefined;
}

/**
 * A function used to process headerClassName params.
 * @param {GridColumnGroupHeaderParams} params The parameters of the column group header.
 * @returns {string} The class name to be added to the column group header cell.
 */

/**
 * The union type representing the [[GridColDef]] column header class type.
 */