# TODO: make element as an abstract class
class Element:

    # TODO: use **kwargs
    def __init__(self, name, position):
        self.element_type = name
        self.s = position

@@ -105,24 +105,22 @@
 , name, 
-position
+length
 ):%0A     
@@ -164,17 +164,20 @@
 elf.
-s = position
+length = length
 %0A

Add length parameter to an element