def print_options
      @print_options ||= PrintOptions.new
      yield @print_options if block_given?
      @print_options
    end
Options for printing the worksheet.
@example
wb = Axlsx::Package.new.workbook
# using options when creating the worksheet.
ws = wb.add_worksheet :print_options => {:grid_lines => true, :horizontal_centered => true}

# use the set method of the page_margins object
ws.print_options.set(:headings => true)

# set page margins in a block
ws.print_options do |options|
options.horizontal_centered = true
options.vertical_centered = true
end
@see PrintOptions#initialize
@return [PrintOptions]