_createCellStylesIfNeeded() {
        this.sheet().forEachExistingColumnNumber(columnNumber => {
            if (!_.isNil(this.sheet().existingColumnStyleId(columnNumber))) this.cell(columnNumber);
        });
    }
If a column node is already defined that intersects with this row and that column has a style set, we
need to make sure that a cell node exists at the intersection so we can style it appropriately.
Fetching the cell will force a new cell node to be created with a style matching the column.
@returns {undefined}
@private