code: def find_last(self, selector, **kwargs):
          
  
          self.debug_log("Finding last element with selector: %s" % selector)
  
          elements = self.find_all(selector, **kwargs)
          if len(elements):
              self.debug_log("find_last (%s): element found" % selector)
              return elements[-1]
          else:
              self.debug_log("find_last (%s): No element found" % selector)
              return None
docs: Return the last element found with a selector
  
          Args:
              selector (str): the selector used to find the element
  
          Kwargs:
              wait_until_present (bool)
              wait_until_visible (bool)
              raise_exception (bool)
  
          Returns:
              None if no element was found
              proxy_element is an element was found
  
          Raises:
              this function might raise an exception depending
                  on the raise_exception kwargs
              or
              the config proxy_driver:raise_exception