Draw a single line connecting each side,line of the puzzle

Pay no attention to the dots. I had to add them for formatting. Treat all of the other lines as solid lines. Basically it is a few rectangles and a couple of squares, all connected.

Draw a single, constant, line through each of the sides, lines, crossing each line only one time. It is okay for the line you are drawing to cross itself. The ends of the line can start and stop inside or outside the puzzle.

_______________________________________
l................................ l........................................ l
l.................................l.........................................l
l................................ l........................................ l
l.................................l.........................................l
l_________________l____________________l
l................l................ .................l...................... l
l................l..................................l.......................l
l................l................ .................l...................... l
l................l..................................l.......................l
l________l_________________l____________l