# automatically generated by generate_docs.py. doc="""Attributes supported by this class are: head_color(type:color.T) default="The color of the arrow head.". head_style(type:int) default="The value of 0 draws a triangular arrow head. The value of 1 draws a swallow-tail arrow head. The value of 2 draws a circular head. The value of 3 draws a diamond-shaped head.". head_len(type:length in points (\\xref{unit})) default="The length of the arrow head.". line_style(type:line_style.T) default="Line style.". thickness(type:length in points (\\xref{unit})) default="The width of the arrow head.". """