code: def _element(cls):
          '''   find the element with controls '''
          if not cls.__is_selector():
              raise Exception("Invalid selector[%s]." %cls.__control["by"])
          
          driver = Web.driver
          try:            
              elements = WebDriverWait(driver, cls.__control["timeout"]).until(lambda driver: getattr(driver,"find_elements")(cls.__control["by"], cls.__control["value"]))
          except:                        
              raise Exception("Timeout at %d seconds.Element(%s) not found." %(cls.__control["timeout"],cls.__control["by"]))
          
          if len(elements) < cls.__control["index"] + 1:                    
              raise Exception("Element [%s]: Element Index Issue! There are [%s] Elements! Index=[%s]" % (cls.__name__, len(elements), cls.__control["index"]))
          
          if len(elements) > 1:              
              print("Element [%s]: There are [%d] elements, choosed index=%d" %(cls.__name__,len(elements),cls.__control["index"]))
          
          elm = elements[cls.__control["index"]]
          cls.__control["index"] = 0        
          return elf _element(cls):
          '''   find the element with controls '''
          if not cls.__is_selector():
              raise Exception("Invalid selector[%s]." %cls.__control["by"])
          
          driver = Web.driver
          try:            
              elements = WebDriverWait(driver, cls.__control["timeout"]).until(lambda driver: getattr(driver,"find_elements")(cls.__control["by"], cls.__control["value"]))
          except:                        
              raise Exception("Timeout at %d seconds.Element(%s) not found." %(cls.__control["timeout"],cls.__control["by"]))
          
          if len(elements) < cls.__control["index"] + 1:                    
              raise Exception("Element [%s]: Element Index Issue! There are [%s] Elements! Index=[%s]" % (cls.__name__, len(elements), cls.__control["index"]))
          
          if len(elements) > 1:              
              print("Element [%s]: There are [%d] elements, choosed index=%d" %(cls.__name__,len(elements),cls.__control["index"]))
          
          elm = elements[cls.__control["index"]]
          cls.__control["index"] = 0        
          return elm
docs: find the element with controls