Make the Document class available when importing the library

svgpathtools/__init__.py

@@ -12,6 +12,7 @@ from .paths2svg import disvg, wsvg
 from .polytools import polyroots, polyroots01, rational_limit, real, imag
 from .misctools import hex2rgb, rgb2hex
 from .smoothing import smoothed_path, smoothed_joint, is_differentiable, kinks
+from .document import Document
 
 try:
     from .svg2paths import svg2paths, svg2paths2