Update page object with new elements and methods

qa/qa/ee/page/project/issue/index.rb

@@ -16,7 +16,28 @@ module QA
                 view 'ee/app/views/projects/issues/_issue_weight.html.haml' do
                   element :issuable_weight
                 end
+
+                view 'ee/app/views/projects/issues/export_csv/_button.html.haml' do
+                  element :export_as_csv_button
+                end
+
+                view 'ee/app/views/projects/issues/export_csv/_modal.html.haml' do
+                  element :export_issues_button
+                  element :export_issues_modal
+                end
+              end
             end
+
+            def click_export_as_csv_button
+              click_element(:export_as_csv_button)
+            end
+
+            def click_export_issues_button
+              click_element(:export_issues_button)
+            end
+
+            def export_issues_modal
+              find_element(:export_issues_modal)
             end
 
             def issuable_weight