send multiple lines #34 + bug #43 (#47)

* send multiple lines #34 + bug #43

Allowing __type_slow__ to send a single message with newlines #34
Fixing function call never received 'element' and 'element' overwritten in function #43

* allow last char \n to submit the message

instadm.py

@@ -130,7 +130,7 @@ def typeMessage(self, user, message):
             self.__random_sleep__()
 
         if self.__wait_for_element__(self.selectors['send'], "xpath"):
-            self.__remove_browser_unsupported_banner_if_exists(self, element):
+            self.__remove_browser_unsupported_banner_if_exists()
             self.__get_element__(self.selectors['send'], "xpath").click()
             self.__random_sleep__(3, 5)
             print('Message sent successfully')
@@ -326,8 +326,12 @@ def __type_slow__(self, element_tag, locator, input_text=''):
             element = self.__get_element__(element_tag, locator)
             actions = ActionChains(self.driver)
             actions.click(element).perform()
-            for s in input_text:
-                element.send_keys(s)
+            for index, s in enumerate(input_text):
+                # https://stackoverflow.com/questions/53901388/how-do-i-manipulate-shiftenter-instead-of-n/53909017#53909017
+                if s == '\n' and index != len(input_text) - 1:
+                    element.send_keys(Keys.SHIFT, s)
+                else:
+                    element.send_keys(s)
                 sleep(uniform(0.25, 0.75))
 
         except Exception as e:
@@ -346,7 +350,7 @@ def teardown(self):
         self.driver.close()
         self.driver.quit()
 
-    def __remove_browser_unsupported_banner_if_exists(self, element):
+    def __remove_browser_unsupported_banner_if_exists(self):
         element = self.__get_element__('rh7Wz', 'CLASS')
         if element is not None:
             self.driver.execute_script("""